Fact check · first aired 1996
Every episode transcribed and checked against what we know today about the history of exploration. Each point shows the episode, the moment it is said, and the exact line from the English dub (or the original French, where no English upload exists).
Watch the episodes on the official Hello Maestro YouTube channel.
These are the major errors: things a viewer could come away believing that are meaningfully wrong. We also found 128 minor slips (a date, a name or a number slightly off, or a likely dubbing error) which are hidden unless you ask for them.
Outdated: matched what was known at the time, but newer research changed the picture. Common belief then: specialists already knew better, but textbooks and popular books of the day still said it. Wrong in its day: a careful writer could have got it right from ordinary references; often a slip in a number, a name or the dubbing. Plain simplifications for children are not counted; they are listed under each episode. How this was made.
Episodes 23 (Alexandra David-Néel) and 24 (Auguste Piccard) could not be found in English or French and are not covered.
The episode surveys the earliest seafaring, from the first sailing boats in Egypt and Mesopotamia through Minoan Crete, the Thera eruption and the Phoenician–Mycenaean rivalry. It then follows three ancient voyages: Pharaoh Necho II's Phoenician circumnavigation of Africa, Hanno of Carthage's trip down the West African coast, and Pytheas of Massalia's journey north to Thule. It closes with the Greek discovery that the Earth is a sphere, from Pythagoras to Eratosthenes, and uses this to show how limited ancient geography was.
"In Egypt, the oldest examples of sailing craft go back 3,500 years before the common era."
TodayEgyptian pictures of sailing boats from about 3500–3200 BCE (Naqada II pottery) were the textbook "first sail" in 1996, though an Ubaid-period model boat from Eridu with a possible mast socket was already known. Excavations at H3 (As-Sabiyah, Kuwait) from 1998 onward, published by Robert Carter in 2002–06, found Ubaid-period boat remains and a painted disc showing a two-masted sailing boat from about 5500–5000 BCE. The oldest evidence for sail is now from the Gulf and Mesopotamia, about 1,500–2,000 years earlier than the date given. The next line, "That was in Mesopotamia", suggests the script pointed that way too.
"The Phoenicians, in what is now Lebanon, and the Mycenaeans, in Greece."
TodayMinoan Crete's naval peak was about 2000–1450 BCE. The Phoenicians, as a distinct seafaring power in Tyre and Sidon, only appeared after the Bronze Age collapse, around 1200–1100 BCE, by which point Minoan Crete had long since passed to the Mycenaeans. Canaanite ports such as Byblos and Ugarit did trade with Crete and Egypt, so "Phoenician" can be read loosely as Bronze Age Canaanite. But showing Phoenicians fighting Crete for the seas "for centuries" is anachronistic.
"It took place on Thera, one of the islands of Crete."
TodayThera (Santorini) is a separate island in the Cyclades, about 110 km north of Crete. Its town at Akrotiri was heavily influenced by Minoan culture but did not belong to Crete. The wording may be a dub slip for "near Crete".
"This was the end of the great Minoan civilization of Crete."
TodayThe Thera eruption did not end Minoan civilization. Archaeologists had known since the 1980s that it happened in Late Minoan IA, while the Cretan palaces carried on and were destroyed about a century or more later (Late Minoan IB, c. 1450 BCE). Mycenaean Greeks then took over Knossos. Since 1996, radiocarbon dates, especially the buried olive branch from Thera (Friedrich et al., 2006), put the eruption around 1600 BCE, which makes the gap even longer. The eruption probably hurt Minoan trade and coastal sites, but it was not the knockout blow.
Why it was believedSpyridon Marinatos's 1939 theory that the eruption destroyed Minoan Crete, together with the Atlantis link, dominated popular books and TV documentaries for decades.
"It's those Mycenaeans. They're better armed than we are."
TodayHanno and Himilco sailed around the 5th century BCE (perhaps late 6th). Mycenaean civilization had disappeared about 600–700 years earlier, around 1100 BCE. Carthage's sea rivals then were the western Greeks (Phocaeans and Massalia, later Syracuse) and the Etruscans.
"The Caramantes, no-bads, who roamed over North Africa."
TodayThe Garamantes ("Caramantes" is a mishearing) were not roaming nomads. They ran a settled, urban, irrigated farming state in the Fezzan (Libya), with its capital at Garama (Germa) and underground water channels (foggaras). Charles Daniels' excavations had begun to show this, but David Mattingly's Fezzan Project (1997–2001) and later work firmly overturned the old nomad picture. Herodotus says they hunted the "cave-dwelling Ethiopians" in four-horse chariots, so "fought against another people" is fair.
"We're gonna be Pygmy's lunch, they'll chop us into the little chest."
TodayHanno's Periplus does not mention Pygmies, and certainly not man-eating ones. It describes hostile people in animal skins who threw stones, and "hairy people" the interpreters called Gorillai, three of whose women the Carthaginians killed and skinned. Central African forest peoples (Mbuti, Aka, Baka and others) were never cannibals, and they lived far from the coast Hanno probably reached. The joke recycles the colonial "cannibal savages" cliché. It is a character speaking, not the narrator.
Why it was believedAdventure stories, comics and colonial-era writing routinely showed Africans in general, and "Pygmies" in particular, as cannibals.
"Only this time, it was to the north. He encountered the Hyperboreans."
TodayThe Hyperboreans were a mythical people "beyond the North Wind", linked to Apollo. Pytheas did not claim to have met them. In the fragments that survive, he describes the tin trade of Cornwall, the Britons and their grain and mead, and Thule six days' sail north of Britain. The narrator's explanation treats Hyperboreans as a real people. Herodotus himself doubted they existed (4.36).
"He says they're a night six months long!"
TodayA six-month night happens only at the poles. Wherever Thule was (Iceland, the Norwegian coast or Shetland, at about 60–66°N), the winter night lasts at most about a day around the solstice, and in the far north of Norway a few weeks. The "six months" claim comes from Pliny (Natural History 4.104) and is not from Pytheas. The fragment Geminus quotes has Pytheas saying only that the summer nights there were two or three hours long. The show does explain correctly that the midnight sun is caused by the Earth's shape.
"The Earth is round and surrounded by oceans, but Athens is here, right at the center."
TodayThis turns Herodotus upside down. He mocked the Ionian maps that drew the Earth "round as if by a compass" with Ocean flowing all around it (4.36), and he said nobody knew whether Europe was bounded by sea to the north and east (4.45). He came from Halicarnassus, and Greeks put the world's centre at Delphi (the omphalos), not Athens. He also doubted the Hyperboreans and knew nothing of the Urals, though he did mention elephants and small men in Libya.
The episode follows Alexander from taming Bucephalus and his lessons with Aristotle, through his quarrel with Philip, to his campaign against Persia. It covers the Granicus, the Gordian knot, Issus, Tyre and Gaza, Egypt, Siwa and Alexandria, then Gaugamela, Babylon and Susa. It ends with his growing excesses, the killing of Philotas and Parmenio, and his death at 33, and presents him as a spreader of Greek thought who was also ruined by his passions.
"It extended right to India, China, Russia, all the way to Egypt."
TodayThe Achaemenid empire reached the Indus, Central Asia (Sogdiana) and Egypt. It never bordered or included China, and apart from a foothold north of the Caucasus it did not reach what is now Russia. The list of modern countries that follows (Afghanistan, Pakistan, Iran, Iraq, Syria, Israel, Lebanon, Turkey) is correct.
"The Persians could raise an army of a million men."
Today"A million men" comes from ancient writers: Herodotus on Xerxes, and Arrian on Gaugamela. Modern historians estimate the largest Persian field armies of Alexander's time at roughly 50,000–120,000. The episode repeats the figure later ("He said he has a million soldiers"). The river-drinking story is Herodotus' and is fairly framed with "it was said".
Why it was believedPopular retellings followed the ancient numbers, even though scholars had long rejected them.
"Ptolemy, you will take the right."
TodayAt the Granicus (334 BC), and in all his major battles, Alexander led the Companion cavalry on the right wing himself, and Parmenio held the left. Ptolemy, son of Lagus, was not yet a senior commander. The sun-in-their-eyes reasoning is invented. The real story is that Parmenio advised waiting until dawn and Alexander attacked across the river at once, late in the day.
"gaza was another hard nut to crack greek fire it was a novelty"
Today"Greek fire" was invented about 1,000 years later, around AD 672, by the Byzantines (traditionally by Kallinikos). The defenders of Tyre in 332 BC did use fire ships and heated sand, but not Greek fire.
"And the faithful Parmenio will take the last enemy stronghold on the way to the fabulous Persepolis."
TodayThe last obstacle before Persepolis was the Persian Gates, held by Ariobarzanes. Alexander took the pass himself in early 330 BC by outflanking it on a mountain path. Parmenio led the baggage and heavy troops by the slower main road.
The episode follows the Norse Atlantic voyages as told in the Icelandic sagas. Erik the Red is outlawed from Iceland, finds and names Greenland, and leads settlers there. Bjarni sights unknown land to the west, and Leif Eriksson then sails past Helluland and Markland to winter in Vinland. Thorvald is killed by natives, and Thorfinn Karlsefni's colonising expedition (with Freydís) fails after fighting with the "Indians". The lesson is that Norsemen reached America about five centuries before Columbus, though the show also calls them plunderers.
No major errors in this episode. 4 minor slips hidden.
"But the eastern side of Iceland was completely unknown."
TodayThe unknown lay to the west of Iceland, which is where Erik sails next. This is probably a dubbing or translation slip.
"In the year 964, Erik the Red was banished from Norway for murder"
TodayAccording to the sagas, Erik's father Thorvald Asvaldsson was exiled from Norway for manslaughter around 960, and took his young son (born c. 950) with him to Iceland. Erik's own killings, and his outlawry, came later in Iceland. The episode gets that part right.
"This whole story about wild grapes is false,"
TodayThe Master's claim that Old Norse vin means "grassy land" (meadow), so that Vinland was "pasture land" and not "wine land", is Helge Ingstad's theory. Philologists have largely rejected it. Vin (short vowel, "meadow") was an old place-name element that had stopped being used to form new names long before 1000, and the sagas and Adam of Bremen (c. 1075) both explain the name by wild grapes (vín, long vowel). Butternuts found in the Norse layers at L'Anse aux Meadows grow only further south, in the same areas as wild grapes, so the Norse did reach grape country around the Gulf of St Lawrence. The grape story is most likely genuine, and the show's "completely false" is the wrong way round.
Why it was believedIngstad, who found L'Anse aux Meadows in 1960, popularised the meadow reading in widely read books, and many popular accounts repeated it.
"So Torgal and eight of his men set sail for Greenland,"
TodayIn Erik the Red's Saga, Thorhall the Hunter left with nine men because of a quarrel over which way to search for Vinland. He left before the clashes with the natives, not out of fear of them. Westerly gales drove his ship to Ireland, where the crew were reportedly enslaved and killed. They did not land in Iceland. ("Iceland" may be a mishearing of "Ireland".)
The episode tells how Temüjin, abandoned after his father Yesügei's death, recovers stolen horses with Bo'orchu, marries Börte, wins her back from the Merkits with Toghrul's help, and unites the steppe tribes to be proclaimed Genghis Khan. A fast chronology covers his conquests from Siberia to northern China, Khwarazm and the Caucasus, and it ends with the empire passing to Ögedei and a blessing for the young Kublai. It teaches how a poor nomad built one of history's largest empires through cunning, loyalty and military organisation.
No major errors in this episode. 1 minor slip hidden.
"1209, the conquest of northern Tibet."
TodayThe 1209 campaign was against Western Xia (Xi Xia), the Tangut kingdom in present-day Ningxia and Gansu. The Tangut spoke a Tibeto-Burman language, but their state was not Tibet, and Western Xia was not conquered until 1227. The Uyghurs also submitted in 1209. Tibet itself first came under Mongol control in 1240, under Ögedei's son Köten.
This transcript (French) does not match the official title. Ibn Battuta never appears. After a short recap of Genghis Khan's conquests, it follows Niccolò, Maffeo and Marco Polo from Acre in 1271 across Persia, the Pamirs and the Gobi to Kublai Khan's court. It covers Marco's 17 years in Kublai's service, the return by sea escorting a princess to Persia, and the dictation of his book after his capture by the Genoese. Much of the dialogue quotes or paraphrases Le Devisement du monde directly.
No major errors in this episode. 8 minor slips hidden.
"le Tibet en 1209" [Tibet in 1209]
TodayThe 1209 campaign was against the Tangut kingdom of Western Xia, not Tibet. Tibet came under Mongol control only in 1240.
"En 1220, c'est la guerre contre le Khorasan qui a fait offense aux Mongols et refuse réparation." [In 1220 came the war against Khorasan, which had offended the Mongols and refused reparation.]
TodayThe enemy was the Khwarazmian empire of Shah Muhammad II. Khorasan was one of its provinces. The offence was the massacre of a Mongol caravan at Otrar in 1218 and the killing of Genghis' envoy, and the war began in 1219.
"Et si le pape veut bien m'envoyer six hommes sages de votre foi chrétienne," [And if the pope will send me six wise men of your Christian faith,]
TodayIn Polo's text Kublai asks for "up to a hundred" (jusqu'à cent) learned Christians skilled in the seven arts. The episode lowers the number to six and builds the bargaining scene with the pope around it. The pope did in fact send only two friars, Nicholas of Vicenza and William of Tripoli, and they turned back in Armenia for fear of Baybars' Mamluk invasion. The episode gets that part right.
"quand ils l'ont quitté voilà deux ans." [when they left him two years ago.]
TodayNiccolò and Maffeo left Kublai around 1266, reached Acre in 1269, and set out again in 1271 after the long papal vacancy, so they had left him about five years earlier. (It was the stay in Venice that lasted about two years.)
"Il me semble qu'on pourrait essayer ces fameuses catapultes dont on nous avait parlé." [It seems to me we could try those famous catapults we were told about.]
TodayPolo's book claims the Polos built the siege engines that took "Saianfu", which is Xiangyang (misheard "Shang-Fu"). The siege ended in early 1273, about two years before the Polos reached China. Chinese and Persian sources (Rashid al-Din, the Yuan Shi) credit two Muslim engineers sent by the Ilkhan Abaqa, Ismail and Ala al-Din.
Why it was believedThe story comes from Polo's own text. Henry Yule had already shown the problem with the dates in 1871, but retellings kept the heroic version.
"et eu treize bateaux pour les mener à bon port." [and thirteen ships to bring them safely to port.]
TodayPolo says Kublai fitted out fourteen four-masted ships for the voyage escorting the princess Kököchin to the Ilkhan Arghun (1291–93).
"Et à Angcheu, la capitale qu'il traverse, on peut admirer douze mille ponts de pierre," [And at Angcheu, the capital it flows through, you can admire twelve thousand stone bridges,]
TodayPolo's "12,000 bridges" belongs to Quinsai (Hangzhou), the old Song capital, which stands on West Lake and the Grand Canal, not on the Yangtze. The episode joins his separate Yangtze passage ("the greatest river in the world", with its huge traffic of boats) to Hangzhou.
"Près de l'île de Curzola, sur un bateau véhicule." [Near the island of Curzola, on a ... ship.]
TodayPolo's capture at the battle of Curzola (1298) comes from Ramusio's edition (1559), nearly 250 years later. Polo's book only says he was a prisoner in Genoa in 1298. Many historians think he was taken in a smaller clash, perhaps off Laiazzo (Ayas) in 1296.
Why it was believedRamusio's account was the standard biography and Curzola made a better story.
The episode tells the story of the Ming treasure fleets of the early 1400s. The Yongle emperor (Zhu Di) puts the eunuch Zheng He in charge of a huge fleet. It fights pirates in the Malacca Straits, captures the hostile king of Kotte in Sri Lanka, and brings a giraffe ("qilin") and other exotic animals back to the court. Then Confucian officials and astrologers persuade the court to end the voyages. The episode teaches that China was the leading sea power a century before the Portuguese, and that it chose to stop exploring.
"9,000 years before our era, the Chinese reached Taiwan, then the Philippines, and Malaysia, and finally the Fiji Islands."
TodayThis describes the Austronesian expansion, and the dates are far too early. Farming peoples from the south China coast reached Taiwan around 4000–3500 BC. Austronesians spread from Taiwan to the Philippines around 2000 BC and reached Fiji (Lapita culture) around 1000–900 BC. They were not "the Chinese" in any meaningful sense. Peter Bellwood's "out of Taiwan" model was standard by the 1980s.
"The Chinese set to work inventing the dry dock."
TodayChina had dry docks centuries earlier. Song-dynasty sources describe one in the 11th century, and Hellenistic Egypt reportedly had one around 200 BC. They were not invented for Zheng He's fleet. Watertight bulkheads, mentioned next, are also older, from the Tang or Song period, but the show does not date them.
"each with nine masts and crews of 600 men."
TodayThe nine-masted giant treasure ships, about 44 zhang (roughly 120–135 m) long, come from the Mingshi and a 1597 novel. In 1996 they were usually accepted, for example by Levathes (When China Ruled the Seas, 1994). Since then, naval architects and historians have argued that wooden ships of that size could not have worked, and that the real treasure ships were probably about 60–75 m long. See Xin Yuanou (2002) and Sally Church (2005). Nine masts are no longer taken as fact.
"Chezui and his Malaysian pirates plunder ships in the Straits of Malacca."
TodayChen Zuyi was a Chinese (Cantonese) pirate chief based at Palembang on Sumatra. His followers were largely overseas Chinese, not Malays. Zheng He defeated him in 1407 and sent him to Nanjing for execution. ("Chezui" is a mishearing of Chen Zuyi.)
"welcome to the island of Buddha's birthplace."
TodayThe Buddha was born at Lumbini, in present-day Nepal. Sri Lanka is an island of Buddhist relics, such as the Tooth Relic, and of legends that the Buddha visited it. It is not his birthplace. This may be a dubbing slip.
"At the end of the 15th century, China was the greatest maritime power."
TodayThe voyages ran from 1405 to 1433, so this should be the beginning of the 15th century. By the end of that century the fleet had long been dismantled. This is probably a dubbing slip.
"The Chinese stopped all voyages of discovery under penalty of death."
TodayThe court ended the voyages through politics and cost. The Yongle emperor suspended them in 1421 after the palace fire, the Hongxi emperor cancelled them in 1424, and a last voyage still sailed in 1431–33. The haijin sea ban on private trade dated from 1371, before the voyages. Laws making it a capital offence to build ships with more than two masts came only around 1500 and 1525. The story that Zheng He's logs were burned rests on a much later anecdote.
Why it was believedPopular books turned the end of the voyages into one dramatic imperial ban, "China turned its back on the sea".
"Zheng He probably died at sea in a storm."
TodayZheng He died in 1433, probably at or near Calicut during the return of the seventh voyage. Tradition says he was buried at sea, and his tomb in Nanjing is a cenotaph. No source mentions a storm.
The episode follows Vasco da Gama from a boyhood at sea, through Bartolomeu Dias rounding the Cape (1488), Columbus's rejection in Portugal and the Treaty of Tordesillas, to da Gama's 1497–98 voyage. He makes a wide swing through the South Atlantic, lands near the Cape, gets a pilot at Malindi and reaches the Zamorin's port in India. It teaches why spices drove the search for a sea route and how the Portuguese used the Atlantic wind system.
"in his native Portuguese village near Lisbon"
TodayDa Gama was born in Sines on the Alentejo coast, about 160 km south of Lisbon. It was a small seaport, not really "near Lisbon".
"Well, sir, I'm afraid pepper is worth its weight in pure silver."
TodaySpices were expensive, but "worth its weight in silver (or gold)" is a proverb, not a price. In the late 1400s a pound of pepper in Europe cost a few days' wages of a craftsman, far less than its weight in silver. The follow-up line that nutmeg was "weighed in pure gold" is even further off.
Why it was believed"Worth its weight in gold" was the standard line about spices in popular histories.
"My astronomer, Abraham Zakutu Ben Samuel, has brought it up to date,"
TodayIn this 1488 scene, Abraham Zacuto was still in Salamanca. He came to Portugal only after the Spanish expulsion of 1492, and he did advise da Gama's voyage under King Manuel. The news from Pêro da Covilhã also probably reached Lisbon only around 1490–91 or later.
"Oh, that's a land discovered by one of my captains."
TodayNo evidence shows that Portugal knew of Brazil before Pedro Álvares Cabral landed there in April 1500. The idea that John II secretly knew of it and so pushed the Tordesillas line west to 370 leagues is a speculative theory, the "policy of secrecy". The closing claim, "The Spanish didn't even know it existed, but the Portuguese did", rests on the same theory. (Explaining the name Brazil from brazilwood, brasa meaning "ember", is correct.)
Why it was believedJaime Cortesão and other Portuguese historians of the 20th century promoted the secrecy theory, and it was repeated in popular books.
"You've made up my mind, Vasco, you will command the exposition to the Indies."
TodayThe scene shows John II appointing Vasco and telling "Manuel, my cousin" that he will soon be king. John II died in 1495, and it was Manuel I who chose Vasco da Gama in 1497. John II may have had da Gama's father, Estêvão, in mind.
"Hmm, you see, the midday sun's practically below the horizon, we are near the Tropic of Capricorn."
TodayIn October–November near the Tropic of Capricorn, the midday sun is almost overhead, not near the horizon. Navigators found their latitude from the sun's height at noon with an astrolabe. The line may confuse the sun with the Pole Star, but as dubbed it is wrong.
"Ah, he hopes you like peanuts and saffron in your curry."
TodayThis is a joke line, but peanuts are American. They reached East Africa and India only in the 16th century, after the Portuguese brought them.
"Name Ibn Majid."
TodayThe Malindi pilot is not named in the Portuguese sources (one calls him a "Moor of Gujarat"). Identifying him as Ahmad ibn Majid comes from a 16th-century Ottoman chronicle and Gabriel Ferrand (1922). Most specialists rejected it by the 1970s, for example G. R. Tibbetts (1971). He was probably a Gujarati Muslim pilot.
Why it was believedIbn Majid was the most famous Arab navigator, and the identification made a good story in Arab and Western accounts alike.
"something like that. Calcutta in India."
TodayDa Gama landed near Calicut (Kozhikode) on the Malabar coast in May 1498. Calcutta (Kolkata) is on the opposite side of India and did not yet exist as a city. The two names are often confused.
"12,000 kilometers, almost 8,000 miles, three"
TodayDa Gama sailed out in a wide loop, the volta do mar, so his route from Lisbon to Calicut was close to 20,000 km. 12,000 km is also about 7,500 miles, not "almost 8,000". Columbus's first crossing was about 6,000–7,000 km, so "three times" is right only for the longer figure.
(French episode.) The episode follows the Tassis (Taxis) family of couriers around 1490–1505. Riders who carry letters all the way themselves are slow, so the family sets up a chain of relay stations with fresh horses and local riders, signalled by a post horn. The system links Maximilian's court at Innsbruck with the Low Countries, and later Spain through France. The episode ends with the family's rise to princely rank and the 1867 sale of the Thurn und Taxis post to Prussia. It teaches how relay posts made Europe-wide communication fast and regular.
"Normal, normal, avoue, tout semble normal, mais avant qu'on ne l'invente, il n'y avait pas de poste." [Normal, normal, admittedly everything seems normal, but before it was invented there was no post.]
TodayRelay posts with fresh horses and riders were very old: the Persian angarium, the Roman cursus publicus, Chinese and Mongol (yam) relay systems, the Abbasid barid, and in France Louis XI's royal posts (1464/1479). The Tassis did not invent the relay. They organised the first large cross-border network run as a private business under contract, later open to private letters. The show's other episodes (Genghis Khan, Ibn Battuta) cover some of these earlier systems.
Why it was believedNational postal histories and stamp-collecting literature celebrated the Taxis as "founders of the European post", and that slid into "inventors of the post".
"Et le voyage va durer plus de deux mois." [And the voyage will last more than two months.]
TodayJuana's fleet left Laredo on 22 August 1496 and reached Arnemuiden near Middelburg on about 8 September, after storms and a stop on the English coast. The trip took under three weeks.
"Bon, chambelan, faites lettre de patente pour que les Tassis acheminent la poste en nos provinces de Castille et d'Aragon." [Well, chamberlain, draw up letters patent so that the Tassis carry the post in our provinces of Castile and Aragon.]
TodayThe Spanish post came to the Tassis from Philip the Handsome, not from Ferdinand or Isabella. Philip made Francisco de Tassis Correo Mayor of Castile on 18 January 1505, and Charles confirmed the post and passed it to Baptista de Tassis in 1516–18. The race between couriers is invented.
The episode tells Columbus's first voyage from the side of the Pinzón brothers of Palos. Martín Alonso sees a westward map in Rome, Columbus hears a dying pilot's secret on Madeira, and Columbus is turned down by Portugal, England and France and then by a Spanish commission. With the friar of La Rábida's help, the voyage is approved, the Pinzóns recruit the crews, and quarrels and near-mutiny follow before the landfall of October 1492. It teaches that Columbus's discovery depended heavily on the Pinzóns, whom history has partly forgotten.
"I've seen the architectural plans done by Bramanti and Buenodorti, oh yes, and Michelangelo."
TodayThis is anachronistic. Bramante came to Rome only around 1499, the rebuilding of St Peter's began in 1506, and Michelangelo was a teenager around 1490. The Vatican Library itself was founded under Sixtus IV in 1475, so that part fits. (The tradition that Martín Alonso Pinzón saw a document in the papal library comes from his son's testimony in the pleitos colombinos.)
"My name is Alonzo Sanchez. I piloted a ship. I sailed far away."
TodayThe "unknown pilot" (prenauta) who reached the Caribbean by storm and told Columbus before dying is a legend. Oviedo first reported it in 1535 as an unfounded rumour, and Garcilaso de la Vega gave the pilot the name Alonso Sánchez de Huelva in 1609. No contemporary evidence supports it, and most historians reject it. The show presents it as fact.
Why it was believedJuan Manzano Manzano's Colón y su secreto (1976/1989) revived the story in Spain, and it fitted the long-standing wish to explain Columbus's confidence.
"well this one was drawn by behaim martin behaim"
TodayMartin Behaim's globe was made in Nuremberg in 1492–93, so it could not have been shown in Palos before the voyage left. Toscanelli's map and Pierre d'Ailly's Imago Mundi are period-correct.
"inquisition they are conversos jews promised to the fire"
TodayThe royal offer of pardon to criminals who signed on (April 1492) was taken up by only four men: Bartolomé de Torres, convicted of homicide, and three friends who had helped him escape. They were not Inquisition prisoners, and the show's "they're all cutthroats and thieves" is wrong. Most of the crew of about 90 were experienced sailors from Palos, Moguer and Huelva, recruited largely through the Pinzóns, as the episode itself shows.
Why it was believed"Columbus sailed with a crew of convicts" was a staple of popular accounts.
"This is Louis Torres. The man's a bandit, but he's often very useful."
TodayLuis de Torres was a converted Jew who had served the governor of Murcia. He went as interpreter because he knew Hebrew, Aramaic ("Chaldean") and some Arabic. He was not a bandit. The show seems to mix him up with the convict Bartolomé de Torres.
"to the first man who cites land, I'll give a prize amounted to 10,000 doubloons."
TodayThe reward was a lifetime annuity of 10,000 maravedís from the Crown, to which Columbus added a silk doublet. Doubloons were later coins, and 10,000 gold coins would have been an enormous sum.
Becalmed at sea, Amerigo Vespucci tells his life story: his youth in Medici Florence among Leonardo, Botticelli and Toscanelli, his move to Seville as a Medici agent who helped supply Columbus, and his 1499 voyage with Alonso de Ojeda along the coast of Venezuela and towards the Amazon. The episode then covers his 1501 Portuguese voyage, the New World foods Europe did not yet know, and how Waldseemüller's 1507 map named the "fourth continent" America after him.
No major errors in this episode. 7 minor slips hidden.
"Everyone now knows that you can get to Asia by going around Africa,"
TodayToscanelli died in 1482. Bartolomeu Dias only rounded the Cape of Good Hope in 1488, and Vasco da Gama reached India in 1498. Ptolemy's maps, which scholars still used, showed the Indian Ocean as a closed sea. In Toscanelli's lifetime the route around Africa was a Portuguese hope, not something everyone knew.
"I am currently preparing a large painting,"
TodaySimonetta Cattaneo, who married Amerigo's cousin Marco Vespucci, died in 1476. Botticelli painted The Birth of Venus around 1484–86, years after her death. Nothing from the period shows she ever sat for him, and art historians treat "Simonetta as Venus" as a legend.
Why it was believed19th-century writers and the Pre-Raphaelites made Simonetta into Botticelli's muse, and popular books and guides repeated it.
"The young Maievil, he too, made a name for himself through politics."
TodayNiccolò Machiavelli was born in 1469 and took his first government post in 1498. When Vespucci (born 1454) was "going to be 30", Machiavelli was a teenager with no public role. The line about Pico della Mirandola ("Pictola Miranda"), about nine years younger than Vespucci and already famous, is fine.
"He's at the mouth of the Amazon."
TodayThe narrator puts Vespucci "near the Orinoco" and "at the mouth of the Amazon" in the same breath. The two river mouths are about 1,500 km apart. In 1499 Vespucci's ships said they reached the coast of Brazil near the Amazon and then sailed north-west past the Orinoco to Paria and Venezuela. Historians question even this claim. Vicente Yáñez Pinzón is usually credited with the Amazon, in early 1500. The stilt village that gave Venezuela ("little Venice") its name was on the Gulf of Maracaibo, far west of the Orinoco.
"corn, peanuts, sunflowers, manioc, cotton, pepper, pineapple, chocolate."
TodayCotton was not new to Europe. Old World cottons had been grown in India and Egypt since ancient times, and in Moorish Spain and Sicily in the Middle Ages. The American cotton species only became dominant later. "Pepper" is right only if it means chili peppers (Capsicum). Black pepper was the most famous Asian spice. The rest of the list is correct.
"In 1501, Vespi, this time alone without Alonso Retta, is at the head of three"
TodayThe 1501–02 Portuguese voyage of three ships was probably commanded by a Portuguese captain (often named as Gonçalo Coelho, though the record is unclear). Vespucci sailed as a pilot and cosmographer. His own letters never say he was in command.
Why it was believedVespucci's printed letters put him at the centre of the story, and popular accounts made him the leader.
"He will draw up plans to define precise latitudes and longitudes."
TodayVespucci did take good latitudes. Nobody could measure longitude precisely at sea until the 18th century. In 1499 he claimed to have worked out his longitude from a conjunction of the Moon and Mars. The method was sound in principle, but his reported figures are muddled and could not have been accurate.
Why it was believedOlder biographies hailed Vespucci's lunar observation as an early solution to the longitude problem.
The episode follows Magellan from his pitch to Charles I of Spain, through Portuguese sabotage, the mutiny at San Julián, the discovery of the strait and the starving Pacific crossing, to his death at Mactan in 1521, with Pigafetta as narrator. It ends with the Victoria's return under Elcano in 1522 with 18 survivors, the first ship to sail around the world.
No major errors in this episode. 5 minor slips hidden.
"You, Serao, will take the southeast branch with the San Antonio."
TodayAt the strait, the San Antonio was captained by Álvaro de Mesquita, Magellan's cousin. Juan Serrano commanded the Concepción. The pilot Esteban Gómez put Mesquita in irons, not Serrano, and took the San Antonio back to Spain, arriving in May 1521. The dub may have mixed up the names.
"And that means that you're the first man ever to go around the world."
TodayThe theory that Magellan's slave Enrique was the first person to go around the world assumes he came from the central Philippines. Pigafetta says Enrique was from Sumatra, and Magellan's will says Malacca. Either way he had not yet reached his starting point when he could talk to people in the Philippines. He disappeared after the Cebu massacre of May 1521, so nobody knows whether he ever got home. The claim is still a guess.
Why it was believedStefan Zweig's popular Magellan (1938) and Filipino historian Carlos Quirino spread the idea, and it became a common piece of trivia.
"Yeah, that's right. And of the 218 sailors, only 18 returned."
TodayAbout 240–270 men sailed in 1519 (Pigafetta gives 237). The 18 who landed with the Victoria in September 1522 is correct. However, about 55 men had already returned on the San Antonio. Thirteen held by the Portuguese at Cape Verde and a few Trinidad survivors reached Spain later.
"After six months of hard sailing, the Victoria finally returned to Seville."
TodayThe Victoria left Tidore on 21 December 1521 and reached Sanlúcar on 6 September 1522, about eight and a half months later. The line before it, "the Victoria and the Trinidad were never to return", is probably a translation slip: only the Trinidad never came back. The Portuguese captured her after she failed to recross the Pacific.
"So, all these spices are for approximately 10,000 times their cost."
TodayThe Victoria brought back about 26 tonnes of cloves. They sold for roughly enough to cover the cost of the whole expedition, leaving a modest profit. Spices did sell in Europe for many times their price in the Moluccas, but nothing like 10,000 times. The line may be a garbled "10,000 ducats".
The episode follows Álvar Núñez Cabeza de Vaca, treasurer of Pánfilo de Narváez's 1528 Florida expedition. It covers the march to Apalachee, the improvised boats, the shipwreck on the Texas coast, years living among Native peoples as a slave, trader and healer, and the long walk with three companions to Spanish Mexico in 1536. It contrasts his respect for Native people with the slave-hunting of other conquistadors.
No major errors in this episode. 4 minor slips hidden.
"And then, I remind you that I am the one in charge."
TodayThe episode shows Narváez on land with the castaways after a month with a friendly people, planning to enslave them. Narváez was never with the survivors on Malhado (Galveston area). In November 1528, off the Texas coast, he refused to help the other boats ("every man for himself") and was later swept out to sea and lost.
"It took Cabesa and his companions six years to cross"
TodayThe journey took eight years, from the April 1528 landing in Florida to April 1536, when they met Spaniards in Sinaloa. Most of that time (1528–34) they were held or working as traders along the Texas coast. The actual crossing of the continent took about two years, from 1534 to 1536.
"He discovered and described with passion the most unknown regions ranging from Florida to California and Mexico."
TodayThe survivors never reached California. Their route ran along the Gulf coast, across Texas and through northern Mexico (Chihuahua and Sonora) to Culiacán in Sinaloa, near the Gulf of California.
"Imprisoned because he loved the Indians too much, he will rot away almost until the end of his days."
TodayCabeza de Vaca was governor of Río de la Plata from 1540. In 1544 he was overthrown by colonists under Domingo de Irala and sent to Spain in chains. In 1551 the Council of the Indies stripped him of office and banished him to Oran, but the sentence was later eased. He lived in Seville and died around 1559, apparently with some royal support. He was not imprisoned for the rest of his life. His protection of the Guaraní did anger the colonists, but the formal charges were abuse of power.
Why it was believedHis own Comentarios (1555) cast him as a wronged protector of the Indians, and popular biographies followed that account.
The episode follows the Danish-born Russian naval officer Vitus Bering, sent by Peter the Great to find out whether Siberia joins America. It covers his First Kamchatka Expedition (1725–30), when he sailed through the strait now named after him in fog without seeing America, and the huge Second Kamchatka (Great Northern) Expedition of 1733–43. The episode ends with the 1741 voyage of the St Peter and St Paul to Alaska, Georg Steller's brief landing, the wreck on Bering Island and Bering's death there, and it teaches that people had lived in Siberia and America long before any "discovery".
"Siberia for the Tatars means the immense sleeping country."
Today"Sleeping land" (from a supposed Tatar sib ir) is a folk etymology. The name comes from Sibir, the capital and name of the Tatar Khanate of Sibir that Yermak conquered in 1582. Where that name came from is uncertain: proposals include an ethnonym (the Sabir people) or a Mongolic word for marsh or forest.
Why it was believedThe "sleeping land" gloss was repeated in travel books and popular encyclopedias because it sounds poetic.
"We reached the Arctic Ocean and proved that Siberia is not connected to America."
TodayIn August 1728 the St Gabriel reached 67°18′N in the Chukchi Sea and turned back. Bering never saw America and could not rule out a land link further north or west, so in St Petersburg the result was judged inconclusive. The cossack Semyon Dezhnev had already sailed around the Chukchi Peninsula through the strait in 1648. His report was found in the Yakutsk archives by Gerhard Müller in 1736, during Bering's own second expedition, and historians knew of it long before 1996.
Why it was believedBering's name on the strait led popular accounts to treat him as the man who proved the two continents were separate.
"They did what Peter the Great asked them to do before his death and I will pass it on to his successor, Empress Anna."
TodayPeter died in February 1725, just after the expedition set out. He was succeeded by Catherine I (1725–27) and Peter II (1727–30). Bering came back to St Petersburg in March 1730, just after Anna took the throne, so Anna was not Peter's direct successor.
"And three years after his departure he reached Yakutas."
TodayThe expedition left St Petersburg in early 1733 and Bering reached Yakutsk in late 1734, about a year and a half later. It was the slower academic contingent that only got there in September 1736. ("Yakutas" is a mishearing of Yakutsk.)
"I've been chasing you for four years."
TodaySteller left St Petersburg in January 1738 and caught up with Bering at Okhotsk in March 1740, about two years later. Bering then recruited him in Kamchatka in early 1741 to sail as naturalist and, in practice, physician. The show stages the meeting as a last-minute chase to the departing ships.
"And so, George Steeler was the first European to set foot in Alaska."
TodaySteller landed on Kayak Island on 20 July 1741. Two days earlier, on 18 July, Chirikov's St Paul had sent two boats ashore in southeast Alaska. Their 15 men were never seen again, so they almost certainly landed first, though nobody knows what happened to them. Chirikov had also sighted America on 15 July, a day before Bering. Gvozdev and Fedorov had sighted the Alaskan mainland near Cape Prince of Wales in 1732 without landing. Alaska Natives had of course lived there for millennia.
Why it was believedSteller's journal was published and became famous, while Chirikov's lost boats left no account. Steller is often described as the first European scientist or naturalist in Alaska, and popular retellings shortened that to "first European".
The episode opens with the Polynesian settlement of the Pacific, long before any European arrived. It then covers the European hunt for the imagined "great southern continent": Mendaña and Quirós for Spain, Tasman for the Dutch. Most of the episode follows Louis-Antoine de Bougainville's voyage round the world in 1766–69: the Strait of Magellan, Tahiti ("New Cythera"), Aotourou, the naturalist Commerson and Jeanne Baret, the first woman known to have sailed round the world.
"Well, not today, but it still existed two or three"
TodayThe giant bird is the moa, which lived only in New Zealand. Around 1996 popular books often had moa surviving until a few centuries ago. Holdaway and Jacomb (Science 2000) and later dating show the moa died out by about 1400–1450, within roughly 150 years of people arriving. That is more than 550 years ago. Australia had no moa: its giant birds (Genyornis, the dromornithids) died out tens of thousands of years ago, and the emu is still alive.
"In 400 AD, the Polynesians crossed 3,500 kilometers of ocean to settle in Hawaii."
TodayAround 1996 the usual date for settling Hawaii was 300–500 AD (Kirch and others). Radiocarbon re-dating that kept only short-lived samples changed this (Wilmshurst et al., PNAS 2011). East Polynesia was settled late: the Society Islands around 1025–1120 AD, and Hawaii, New Zealand and Easter Island around 1190–1290 AD. The distance is roughly right: about 3,800 km from the Marquesas and 4,400 km from Tahiti.
"Others went as far as the island of Park, whose statues would be discovered 1,000 years later."
Today"Park" is a mishearing of Pâques, Easter Island (Rapa Nui). Dates around 1996 put its settlement at 400–800 AD. Hunt and Lipo (Science 2006) and the 2011 re-dating moved it to about 1150–1250 AD. Roggeveen arrived in 1722, so the gap is about 500 years, not 1,000.
"Almost 2,000 years ago, Ptolemy, the great geographer, had observed that most of the"
TodayPtolemy's maps did show an unknown southern land (terra incognita) closing off the Indian Ocean. However, the idea that a southern continent must "balance" the northern land masses comes from other Greek writers (Aristotle's climate zones, Crates of Mallus' four-continent globe) and above all from Renaissance cartographers such as Mercator. It is not Ptolemy's argument.
Why it was believedPopular histories of exploration routinely gave Ptolemy credit for the "balance" theory of Terra Australis.
"It was while stopping in Brazil that he discovered this plant"
TodayThe bougainvillea was collected at Rio de Janeiro in 1767 by the expedition's naturalist Philibert Commerson, probably helped by Jeanne Baret. Commerson named it after his commander. Bougainville did not discover it himself. Standard botanical references said so long before 1996.
The Scottish laird James Bruce sets out from Cairo for Abyssinia (Ethiopia) to find the source of the Nile. He goes by the Red Sea, Massawa, Adwa and Axum to Gondar, where he treats the royal family and wins favour at the court of Ras Mikael. He then reaches Lake Tana and the Blue Nile. The show explains that he had found only the source of the Blue Nile and that Europe disbelieved his book, and it ends by pointing to the 19th-century explorers of the White Nile.
"Then, Master, Bruce discovered the source of the Nile."
TodayThe Spanish Jesuit Pedro Páez visited the springs of the Blue Nile (Gish Abay) in 1618, and Jerónimo Lobo described them soon after. Bruce, who reached the springs in November 1770, wrongly played down Páez's claim to have been first. The springs were also a well-known holy site to local Ethiopians. To its credit the episode mentions "the Jesuit P[áez]" at the start and says Bruce found only the Blue Nile source, but it still presents Bruce as the discoverer.
Why it was believedBruce's own Travels (1790) and British popular histories called him the discoverer of the Blue Nile's source.
"My son is still fighting."
TodayThe "queen mother" (itege, "I am Iteg") is the dowager Empress Mentewab. She was the mother of Iyasu II and grandmother of Iyoas, but not the mother of the reigning emperor, Tekle Haymanot II, who was the son of Yohannes II. The smallpox patients Bruce treated belonged to the household of her daughter Weizero Aster ("Esther"), Ras Mikael's wife. "Emperor Amonud" is probably a mishearing.
"I found it. I found it. The waterfall of Tezat,"
TodayThe Tis Issat (Blue Nile) Falls are about 30 km downstream of the river's outlet from Lake Tana, so they are not its source. Bruce did see the falls in 1770 with Ras Mikael's army, but the place he claimed as the "source of the Nile" was the Gish Abay springs south of the lake, which he reached in November 1770.
"Barden and Speak would reach the source"
TodayBurton and Speke reached Lake Tanganyika together in 1858. Speke then went on alone to Lake Victoria while Burton stayed behind ill, and Burton disputed Speke's claim that it was the Nile's source. Speke confirmed the outlet at Ripon Falls in 1862, with Grant.
The episode starts with the 18th-century argument over the Earth's shape: Newton said it was flattened at the poles, Cassini said it was stretched. It then follows the French Academy's 1735 expedition to the equator near Quito. Along the way it shows La Condamine's trip up the Esmeraldas river with Pedro Vicente Maldonado, the hardships and quarrels of the survey, his descent of the Amazon in 1743, and his report on rubber, curare and Amazonian nature to the Paris Academy.
No major errors in this episode. 5 minor slips hidden.
"a most timely gesture: 100,000 pounds sterling."
TodayLa Condamine is said to have spent about 100,000 livres of his own money on the expedition. The livre was a French currency, so "pounds sterling" is a dubbing error: livres means "pounds", but not British money.
"Monsieur Couplet, clockmaker and mechanic"
TodayThe instrument-maker and clockmaker was Théodore Hugot. Couplet (Couplet-Viguier) was a young assistant, the nephew of an academician, who died of fever soon after arriving in 1736. "Captain Vergard" is probably Jean-Joseph Verguin, a naval engineer and draftsman.
"About 50 years ago, the survivors founded the village on this river, the Esmeralda."
TodayThe free Afro-Indigenous communities of Esmeraldas began with a slave ship wrecked in 1553, led by Alonso de Illescas. That was about 180 years before La Condamine came in 1736, not 50.
"His nephew, Pedro Maldonado, will go too."
TodayPedro Vicente Maldonado was a scientist and official born in Riobamba. He was not the nephew of the Jesuit Samuel Fritz, who was Bohemian. He did go down the Amazon in 1743, meeting La Condamine on the way, and later went to Europe, where he died in London in 1748.
"He revealed a new world that till then was totally unknown!"
TodayThe Amazon was not unknown. Orellana went down it in 1541–42 and Pedro Teixeira went up and back in 1637–39 (Acuña published an account in 1641). Jesuit missionaries such as Samuel Fritz had mapped it, and the episode itself mentions Orellana and Fritz. Many Indigenous peoples lived there. La Condamine's real contribution was the first scientific account and map, with measured positions, written for European science.
Why it was believedPopular accounts often described Europe's scientific "discovery" as revealing a land nobody knew.
The episode follows James Cook from his selection to lead the Endeavour voyage (1768–71), past Tahiti, New Zealand, Botany Bay and the near-wreck on the Great Barrier Reef. It then jumps to his third voyage (1776–79): Hawaii, the search for a Northwest Passage through the Bering Strait to the Arctic ice, and his death at Kealakekua Bay. It presents Cook as a humane man of science who worried about bringing disease to the Pacific and wanted to avoid bloodshed.
"you might think that in the second half of the 17th century all the"
TodayCook's voyages were in the second half of the 18th century (1768–79). Probably a dubbing or translation slip.
"I place at your disposal, Lieutenant Charles Clerk."
TodayOn the Endeavour, Charles Clerke was a midshipman and later master's mate, not a lieutenant or Cook's second-in-command. The lieutenants were Zachary Hicks and John Gore. Clerke was second lieutenant on the second voyage and commanded the Discovery on the third.
"take possession of some lands in the name of her gracious majesty"
TodayThe monarch was King George III, so "his" majesty. The episode itself later says "His Gracious Majesty". Probably a dub slip.
"100 gallons of beer"
TodayThe Endeavour carried about 1,200 gallons of beer (a sailor's daily ration was a gallon), plus spirits. It had about 9 tons (about 20,000 lb) of biscuit, not 34,000 lb. The sauerkraut figure (about 7,000+ lb, really 7,860 lb) is right. "100" may be a misheard "1,200".
"Protects against scurvy"
TodayCook carried 7,860 lb of sauerkraut and is credited with beating scurvy, but stored sauerkraut has little vitamin C. His crews stayed healthy mainly because he took on fresh food and greens at every landfall, kept the ship clean, and had short gaps between landfalls. Kenneth Carpenter (The History of Scurvy and Vitamin C, 1986) and earlier work by Kodicek (1969) had already shown this.
Why it was believedCook believed in sauerkraut and wort himself, and the Royal Society gave him its Copley Medal (1776) for his paper on keeping crews healthy. The "sauerkraut saved the sailors" story then became a popular textbook anecdote.
"We are not going to take advantage of the superiority that weapons give us."
TodayCook's first landing in New Zealand, at Tūranganui-a-Kiwa (Poverty Bay) in October 1769, was not a warning shot into the air. Over two days his men shot dead several Māori, including Te Maro and the chief Te Rākau, and killed more in a fishing canoe they tried to seize. Cook's own journal records it and Beaglehole's edition (1955) made it well known. The episode also never says that Tasman had reached New Zealand in 1642, or that Māori had lived there for centuries.
"It's a duck with four legs."
TodayThis looks like the platypus, which Cook's expedition never saw. Europeans first described it in 1798–99 from a specimen sent from New South Wales. Banks and Solander collected many new plants at Botany Bay, and the crew saw kangaroos at the Endeavour River, but no platypus.
"Let's go. They're peaceful people."
TodayAt Botany Bay (April 1770) two Gweagal men opposed the landing. Cook fired small shot, wounding one, and the shore party took their spears. Afterwards the local people mostly avoided the strangers. Cook's later journal line that Aboriginal people "are far more happier than we Europeans" does match the episode's tone, which is to its credit. ("Odentots" is "Hottentots", a character wrongly using the European name for the Khoikhoi of southern Africa.)
"I promote you to commander in the Royal Navy and you, clerk, to captain"
TodayCook was made commander in August 1771, after the first voyage. He became post-captain in August 1775, after the second, so he was already a captain when he volunteered for the third voyage in early 1776. Clerke commanded the Discovery as master and commander, not post-captain.
"Don't you dare shoot."
TodayAt Kealakekua on 14 February 1779 Cook went ashore to take the aliʻi nui Kalaniʻōpuʻu hostage after the theft of the Discovery's cutter. His boats had just shot a chief, Kalimu, while blockading the bay. In the confrontation Cook himself fired his double-barrelled gun, killing a man, and the marines fired a volley before he was killed. The episode does admit "we fired first", but leaves out Cook's hostage-taking and his own shots.
"He was the first explorer who sought neither gold nor treasures, only knowledge."
TodayEarlier expeditions were mainly scientific, including La Condamine's in 1735 and Bougainville's with Commerson, both in this series. Cook's voyages also had strategic and commercial aims: secret orders to find and claim the southern continent, claims of possession over eastern Australia and New Zealand, and a Northwest Passage for trade. The episode itself has him told to "take possession of some lands".
The episode follows Alexander von Humboldt and Aimé Bonpland from their meeting in Paris in 1798 and Carlos IV's permission. It covers their Venezuelan journey (electric eels, the cow tree, the Apure, the Orinoco and the Casiquiare, Bonpland's fever), the Andes and the attempt on Chimborazo, the cold Pacific current, and the meeting with Jefferson in 1804. Throughout, it stresses Humboldt as a holistic "ecologist" and an outspoken opponent of slavery, ending with Kosmos and the Berlin revolution of 1848.
"Only a Frenchman, Monsieur de la Condamine, published a book about the area."
TodayMany earlier accounts existed. Jorge Juan and Antonio de Ulloa's Relación histórica (1748), from La Condamine's own expedition, was widely translated. The Jesuit José Gumilla's El Orinoco ilustrado (1741) and Gilij's Saggio di storia americana (1780s) covered the Orinoco itself.
"All those mosquitoes, they carry the disease."
TodayThis is anachronistic in 1800. Ronald Ross showed that mosquitoes spread malaria in 1897. Humboldt's era blamed "miasma" (bad air) from swamps.
"Nobody has ever climbed higher."
TodayHumboldt's party reached about 5,875 m on Chimborazo on 23 June 1802. That was the highest recorded climb by a European, and it stood for about 30 years. Centuries earlier, however, the Incas had climbed several Andean peaks over 6,000 m and built shrines on top: Llullaillaco (6,739 m), with summit ruins found in 1952, and Ampato, where the "Juanita" mummy was found in 1995. The "record" counts European climbers only.
Why it was believedMountaineering history was written as a list of European "firsts", and Inca high-altitude archaeology was little known outside specialists.
"The human air rises over the mountains, the Andes going to the east."
TodayThe explanation has the weather running the wrong way. The coastal desert of Peru exists because the cold Humboldt Current cools the air above it. That cool air sits stable under warmer air (an inversion), so it gives fog (garúa) but almost no rain. Moisture over the Andes comes from the east: trade winds carry it from the Atlantic and the Amazon, and it rains on the eastern slopes. Pacific air does not cross the Andes and rain on the other side. The coast lies in the Andes' rain shadow. ("human" is a mishearing of "humid".)
"At the age of 90, Humboldt completed the last volume of his great work, Cosmos."
TodayHumboldt died on 6 May 1859 at 89, before finishing Kosmos. Volume 4 appeared in 1858, and volume 5 was put together from his papers and published after his death (1862).
Jefferson sends Meriwether Lewis, with William Clark and Clark's servant York, to explore the West just as France sells Louisiana to the United States. The episode follows the Corps of Discovery up the Missouri: the standoff with the Teton Sioux, a Mandan buffalo dance, the hiring of Charbonneau and Sacagawea, the meeting with the Shoshone, the starving crossing of the Bitterroots and the Nez Perce who saved them, ending with a warning that the promised "peace and friendship" did not last.
"200 million acres and only a few cents per acre."
TodayThe Louisiana Purchase covered about 530 million acres (about 828,000 square miles, 2.1 million km²). The price was $15 million, about 3 cents an acre. "A few cents" is right, but the acreage is less than half the real figure.
"He says that alcohol is no good medicine."
TodayThe scene is the Teton Sioux encounter of September 1804, and the jealous second chief matches the Partisan's rivalry with Black Buffalo. But the Teton chiefs drank the whiskey they were offered on the keelboat. The well-known refusal of alcohol came from the Arikara a few weeks later, who said white men would not give them anything that made them fools if they were friends. The show has moved the Arikara story to the Teton.
"my own tribe one day sold me to him"
TodaySacagawea was not sold by the Shoshone. Hidatsa raiders captured her as a girl, around 1800, at the Three Forks of the Missouri. Charbonneau later got her from the Hidatsa, by purchase or, according to some accounts, by gambling. The transcript may have garbled "a tribe" or "another tribe".
"People, I know the passage."
TodaySacagawea was not the expedition's guide. She was taken on mainly as a Shoshone interpreter (with her husband Charbonneau) and as a sign of peaceful intent. She recognised a few landmarks near her homeland, such as Beaverhead Rock and later Bozeman Pass. The route over the Rockies was found with the Shoshone guide Old Toby and the Nez Perce. Lewis and Clark's journals make this clear.
Why it was believedEva Emery Dye's novel The Conquest (1902) and the women's suffrage movement turned Sacagawea into "the guide who led Lewis and Clark", and that version filled children's books and films for most of the century.
"We must go around the hills of the Rocky Mountains, with peaks so high no man had ever crossed them."
TodayThe Lolo Trail was an established Nez Perce road that the Nez Perce used to cross to the buffalo plains. The Shoshone told Lewis about it, and Old Toby led the Corps along it. The mountains were new only to Euro-Americans. The later line "No man's ever gone up" repeats the same idea.
Why it was believedFrontier stories cast the West as untrodden wilderness and counted only white travellers as "firsts".
"Clark had found the Northwest Passage, a land route to the Pacific"
TodayThe expedition's main geographic finding was that there was no Northwest Passage, meaning no easy water link between the Missouri and the Columbia. The crossing included about 220 miles of land carriage over very hard mountains. In his 1806 report Lewis did call this "the most practicable route" across the continent, but traders never used it, and the later Oregon Trail went through South Pass.
The episode opens with Cook at Botany Bay in 1770 and reminds viewers that Aboriginal people reached Australia tens of thousands of years earlier. It then moves through the convict colony at Sydney, Matthew Flinders and the name "Australia", and early inland explorers such as Leichhardt and Kennedy. Most of the episode is the 1860–62 race to cross the continent from south to north: Burke and Wills's Victorian expedition, with its camels, the Dig Tree and the deaths, and John McDouall Stuart's successful South Australian crossing. It shows Aboriginal people as watchers, victims, guides and rescuers.
"I take possession of this land in the name of England."
TodayCook did not claim the land at Botany Bay (April–May 1770). He claimed the whole east coast for King George III, in the name of Great Britain rather than "England", at Possession Island off Cape York on 22 August 1770.
"Australia was connected to New Guinea and Indonesia."
TodayAt low sea levels Australia, New Guinea and Tasmania formed one landmass (Sahul), and western Indonesia joined mainland Asia (Sunda). Between the two lay the deep-water islands of Wallacea, so even at the lowest sea levels the first Australians had to make several sea crossings, at least one of about 70–90 km. The first settlers came by boat or raft, not "on foot", which makes them some of the earliest known seafarers. Geologists and archaeologists knew this well before 1996 (Wallace's Line; Birdsell, 1977).
Why it was believed"They walked across a land bridge" was the easy popular version, borrowed from the Bering land bridge story.
"Governor, I have explored New Zealand. It is an enormous island, like a continent."
TodayFlinders charted Australia, not New Zealand. His circumnavigation in 1801–03 showed that New Holland and New South Wales were one continent. He promoted the name "Australia" in his 1814 book, and Governor Macquarie took it up from 1817. This may be a dubbing or transcription slip for "New Holland".
"The beginning of the 19th century, only a few ports and small towns were founded"
TodayOf the towns listed, only Sydney (1788) and Hobart (1804) existed in the early 1800s. Brisbane (1824), Albany (1826), Perth (1829), Melbourne (1835) and Adelaide (1836) came later. Darwin (founded as Palmerston in 1869) was settled only after Stuart's crossing, so the later line "it'll take us to the port of Darwin" is anachronistic too. The harbour had been named Port Darwin in 1839, but there was no town.
"Another explorer, John Septimborough, also tried."
TodayThis is surely John Septimus Roe, Surveyor-General of Western Australia, and he did have 13 children. His 1848–49 expedition went from the Avon valley to the Russell Range and the south coast inside Western Australia. It was not an attempt to cross the continent.
"It's been five months since they left and we're still waiting."
TodayBurke left Cooper Creek on 16 December 1860. William Brahe, told to wait three months, held on for just over four and left on the morning of 21 April 1861, the day Burke, Wills and King got back.
"Thus, on July 25, 1862, two explorers managed"
TodayStuart's party reached the sea at Chambers Bay, Van Diemen Gulf, on 24 July 1862. All ten men of the party, not two, made it there and back alive. If "two explorers" means Burke and Wills, they reached the tidal Flinders/Bynoe estuary in February 1861 and are usually credited with the first south–north crossing, though they died on the way back.
The episode sketches European exploration of Africa from the African Association, Mungo Park and René Caillié. It then follows David Livingstone's missionary years, his coast-to-coast crossing via Luanda and Victoria Falls, his Zambezi expedition and his disappearance. Henry Morton Stanley's search ends with "Dr Livingstone, I presume?", and his violent 1874–77 descent of the Congo is shown to have opened the way for the European scramble for Africa. The episode contrasts Livingstone's anti-slavery hopes with the exploitation that followed.
"the encouragement and the means to explore the dark continent."
TodayThe interior of Africa was not a blank or "mystery". Africans had their states and trade networks, Swahili-Arab caravans regularly reached Lake Tanganyika and beyond, and Portuguese and Afro-Portuguese traders had been active along the Zambezi and in Angola since the 1500s. Many famous "discoveries" were made along existing trade routes with local guides. The same episode shows this when Stanley follows reports from Ujiji and travels with Tippu Tip.
Why it was believed"Darkest Africa" and "the Dark Continent" came from Victorian explorers' own book titles (Stanley's Through the Dark Continent, 1878) and stayed standard in popular history.
"so the association funds the first european expedition"
TodayEarlier Europeans had travelled deep into Africa long before 1795: Portuguese journeys to the Mutapa state and up the Zambezi in the 1500s, Jesuits such as Pedro Páez in Ethiopia in the 1600s, and James Bruce (episode 15 of this same series) in 1768–73. The African Association's own earlier envoys, Ledyard and Houghton, died before Park set out.
Why it was believedBritish-centred histories dated "African exploration" from the African Association.
"He would be the first European ever to arrive at the legendary"
TodayThe Scot Alexander Gordon Laing reached Timbuktu in August 1826, two years before Caillié, and was killed after he left. Caillié (1828) was the first European to reach Timbuktu and return alive, which is how the French Geographical Society prize described him. He set out from the Rio Nunez in present-day Guinea, not from Senegal itself.
"At the age of 25 and with diplomas in medicine and theology"
TodayLivingstone (born 19 March 1813) landed in South Africa in March 1841, at 27 or 28. He had a medical licence from Glasgow (1840) but no theology diploma; he had trained with the London Missionary Society.
"Many people in Europe were concerned about Livingston, but nobody did anything,"
TodayIn 1867 the Royal Geographical Society sent E. D. Young's search expedition to Lake Nyasa, which disproved reports that Livingstone was dead. The British consul John Kirk also sent supply caravans from Zanzibar. Bennett's New York Herald expedition was the one that found him, but it was not the only effort.
"Dr. Livingston, I presume?"
TodayStanley tore out the diary pages for the days of the meeting, and Livingstone's own writings never mention the phrase. In his biography Stanley: The Impossible Life of Africa's Greatest Explorer (2007), Tim Jeal argued from Stanley's newly opened papers that Stanley probably made up the line later to sound like a gentleman. The meeting at Ujiji in late 1871 did happen. The famous words are now treated as doubtful.
"And he returned to the Congo and made it the Belgian Congo."
TodayStanley worked for King Leopold II from 1879 to 1884, setting up stations that became the Congo Free State (1885). That was Leopold's personal possession, not a Belgian colony. It became the Belgian Congo only in 1908, after an international outcry over Free State atrocities.
"British subject came and gave his name to British Cameroon."
TodayNo explorer gave his name to Cameroon. The name comes from the Portuguese Rio dos Camarões ("river of prawns"), and the country was a German colony from 1884. The line probably meant Cecil Rhodes and Rhodesia, so it may be a dub or transcription error.
The episode follows Roald Amundsen from a boy dreaming of the North Pole, through the Belgica's winter trapped in Antarctic ice, to his Northwest Passage voyage in the Gjøa, where Inuit teach him dog-driving and fur clothing. It sketches the race for the North Pole (Nansen, Andrée, the Duke of the Abruzzi, Peary), then Amundsen's secret switch to the South Pole in the Fram and his victory over Scott, whose party arrived a month later and died on the way back. Along the way it explains why "every direction is south" at the North Pole.
No major errors in this episode. 6 minor slips hidden.
"1897, the first attempt to explore Antarctica, the South Pole."
TodayThe Belgica (1897–99) was the first expedition to winter in the Antarctic, by accident, when it became trapped in the ice of the Bellingshausen Sea. It was not the first attempt to explore Antarctica: Cook (1772–75), Bellingshausen (1820), Dumont d'Urville and James Clark Ross (1838–43) and others came first, and Bull and Borchgrevink landed on the continent in 1895. The Belgica was not trying to reach the South Pole. Amundsen was the first mate, not second-in-command (that was Georges Lecointe), and he had already sailed on an Arctic sealer in 1894.
"In 1896, the Swedish explorer Solomon André made another attempt in a hot air balloon and died on the way."
TodaySalomon August Andrée's first try in 1896 was called off when the wind did not cooperate. He took off from Svalbard in July 1897 in the hydrogen balloon Örnen (not a hot-air balloon). The crew died on Kvitøya, and their remains and photographs were found in 1930.
"In 1890, Louis Amadei of Savoy came to within 400 kilometers of the pole and disappeared."
TodayLuigi Amedeo, Duke of the Abruzzi, led the 1899–1900 expedition. His officer Umberto Cagni (not the Duke, who had lost fingers to frostbite) reached 86°34′N in April 1900, about 380 km from the Pole. The Duke did not disappear: he lived until 1933. Three men of a support party were lost. "1890" may be a mishearing of 1900.
"But Robert Perry's on his way, and Frederick Scott as well."
TodayPeary's rival in the race for the North Pole was the American Frederick Cook. Robert Falcon Scott was preparing for the South Pole. The dub or the transcript has mixed up the two names.
"Robert Perry's been to the North Pole, right?"
TodayPeary's claim to have reached the North Pole on 6 April 1909 has been disputed since 1909 and is now widely doubted. He took no independent navigational witnesses, and his claimed daily distances on the final dash were implausible. Dennis Rawlins (1973) and Wally Herbert (The Noose of Laurel, 1989) made strong cases that he fell short, though a 1989 Navigation Foundation study for the National Geographic Society backed him. Frederick Cook's rival 1908 claim is rejected even more widely. Ironically, Amundsen himself was on the airship Norge in 1926, the first undisputed sighting of the North Pole.
Why it was believedPeary's claim was officially recognised by the US Congress and the National Geographic Society, and popular histories repeated it as fact.
"There's 6,000 meters in altitude."
TodayAmundsen climbed the Axel Heiberg Glacier to the polar plateau at about 3,000 m, and the South Pole stands at about 2,835 m. No Antarctic peak reaches 6,000 m (the highest, Mount Vinson, is 4,892 m). Amundsen himself estimated the nearby peaks at about 4,500 m.
This episode is in French. It opens with Antoine de Ville's ascent of Mont Aiguille in June 1492, sent by Charles VIII with ladder-makers, stonemasons and clergy. It then skips to Herzog and Lachenal on Annapurna (1950) and spends most of its time on the 1953 British Everest expedition under John Hunt: Kathmandu, the monastery below the mountain, the camps up the Khumbu, oxygen, the failed first attempt and Hillary and Tenzing's summit. Running through it is a yeti subplot (a "scalp" bought in a bazaar, footprints, a lama's tales) that ends with the "yeti" turning out to be a Himalayan bear cub.
No major errors in this episode. 1 minor slip hidden.
"Une peur irraisonnée de cet inconnu, de ces monts qui formaient une barrière infranchissable qui divisait l'Europe." [An unreasoning fear of this unknown, of these mountains that formed an impassable barrier dividing Europe.]
TodayThe Alps were never impassable. People crossed them from prehistory: Ötzi died on a high pass about 5,300 years ago (found in 1991). Hannibal and the Roman armies crossed them, and medieval merchants, pilgrims and armies used the Great St Bernard, Mont Cenis, Brenner and other passes all the time. Fear of high summits and their legends (dragons, demons) was real, but people did not see the range as a wall.
Why it was believed"Mountain gloom" was the standard way to introduce the history of mountaineering, as if no one went into mountains before the alpinists. Marjorie Hope Nicolson's Mountain Gloom and Mountain Glory (1959) had already shown it was about attitudes to summits, not to travel.
The series finale steps back from exploration to recap the whole "Once Upon a Time" saga: the Big Bang, the evolution of life and humans, great inventions and the explorers of earlier episodes. It then turns to warnings about pollution, population growth and nuclear waste, and uses a 12-hour clock to show how recent humans are. It ends looking outward: the first exoplanets around Sun-like stars (51 Pegasi, 1995), ENIAC and Hubble, interstellar distances and speculation about light-speed travel. The message is that there is always more to explore, but we have only one Earth to look after.
"That's about 15 billion years."
TodayIn 1996 the age of the universe was estimated at 10–20 billion years, and 15 was the usual round figure. WMAP (2003) and Planck (2013–2018) fixed it at 13.8 billion years. That also changes the episode's "another 10 billion years" to form the Earth: it is about 9.2 billion.
"Neanderthal, and Cro-Magnon, Modern Man."
TodayThe list of hominins is a single "march of progress" ladder leading to Cro-Magnon. Neanderthals were a sister lineage, not our ancestors. "Robustus" (Paranthropus) was a dead-end side branch. Human evolution is a branching bush. (Most names in the list are mishearings, e.g. "Homoilus" for Homo habilis.)
Why it was believedThe ladder image was everywhere in popular books and museum posters, even though palaeoanthropologists described a bush by the 1980s. Neanderthal mtDNA (1997) settled the point for the public.
"Gregors and Phoenicians circumnavigated Africa"
TodayThe only source for the Phoenician voyage round Africa for Pharaoh Necho II (about 600 BC) is a single report in Herodotus, and historians are still divided on it. "Reached the polar regions" overstates Pytheas, who reached "Thule" near the Arctic Circle in the 4th century BC. ("Gregors" = Greeks.)
Why it was believedPopular histories of exploration often told Necho's circumnavigation as fact, citing Herodotus's detail about the sun being on the "wrong" side.
"rivers dump a ton of waste per capita per day into the sea."
TodayEven in industrialised countries, household solid waste was about 1–2 kg per person per day, and domestic wastewater a few hundred litres. A tonne of waste per person per day is far too high unless it includes all industrial and cooling water. The figure has no clear source.
"Another 32 million centuries for Homo erectus to appear."
TodayThe demography timeline adds up to Homo erectus about 300 million years ago (5 billion − 1.5 billion − 3.2 billion years) and Cro-Magnon "another 30 million centuries" later, which is impossible. Homo erectus appeared about 1.9 million years ago and Cro-Magnon about 40,000 years ago. The units may have been mangled in translation (e.g. thousand and million centuries).
"Statistics predict 8 billion people in 2010"
TodayNo statistical agency predicted this. The episode simply keeps doubling every 35 years up to "128 billion in 2150". The UN's 1994 projections gave about 6.9 billion for 2010 and about 9.4 billion for 2050, levelling off at about 11 billion. The real 2010 figure was about 6.9 billion, and 8 billion was reached in November 2022.
"On our watch, it is then 3.40, the first mollusks at 8 o'clock"
TodayOn a 12-hour clock where 12 hours = 5 billion years, one hour is about 417 million years and one minute about 7 million years. Several times are badly off. Molluscs (about 540 million years ago) belong at about 10:42, not 8:00, which would be 1.7 billion years ago. Dinosaurs ("at 11 o'clock", about 417 million years ago) appeared about 230 million years ago, at about 11:27. Their extinction (66 million years ago) is at about 11:50, not 11:40. Australopithecus (about 4 million years ago) is at about 11:59:25, not 11:55, which would be about 35 million years ago. Modern humans (about 0.2–0.3 million years ago) are in the last 2–3 seconds, not at 11:59. The first-cell time (3:40) is reasonable.
"At 11.40, the end of the dinosaurs and the appearance of small rodents."
TodayMammals did not appear when the dinosaurs died out. Small mammals had lived alongside them for about 150 million years; the "Triconodon" in the episode's list is itself a Jurassic mammal. Rodents appeared only after the extinction and are not on the line leading to humans.
Why it was believed"The dinosaurs died and the little mammals took over" was the standard textbook shorthand. Mesozoic mammals were well known to specialists.
"Man has 12 hours left, or nearly 5 billion years, to spend on Earth."
TodayThe Sun will leave the main sequence in about 5 billion years. But it slowly brightens, and models (e.g. Caldeira & Kasting, 1992) give Earth about 1 billion years before the oceans are lost and complex life ends.
Why it was believed"The Sun has 5 billion years left" was the usual popular figure. The shorter habitability window had not reached general books.
"Pluto, was discovered just a few decades ago."
TodayPluto was found in 1930, which was correct. In 2006 the IAU reclassified it as a dwarf planet, so the outermost planet is now Neptune.
"Hey, there's another message. French astronauts have"
TodayThe next planets after 51 Pegasi b were found in 1996 by the American astronomers Geoffrey Marcy and Paul Butler: 70 Virginis, 47 Ursae Majoris and tau Boötis. Tau Boötis ("the star Boris", about 51 light years away) fits the episode's "52 light years". They were not French, and they were astronomers, not astronauts. This may be a dub slip.
"Then came the computer. The first computer."
TodayENIAC (1945–46, built by John Mauchly and J. Presper Eckert, the two "Johns" of the gag) was not the first computer. Zuse's Z3 (1941), the Atanasoff–Berry Computer (1942) and the British Colossus (1943–44) came earlier. A 1973 US court ruling even invalidated the ENIAC patent and credited Atanasoff. The figures given are mostly right (about 17,500 tubes, 1,500 relays, about 6,000 switches), but it had about 70,000 resistors, not 50,000.
Why it was believedENIAC was the standard "first computer" in popular books. Colossus was secret until the mid-1970s.
"From Belgium to Austria in three days."
TodayUnder the 1505 Taxis contract, post from Brussels to Innsbruck (about 920 km) took about 5½ days in summer and 6½ in winter. That was still remarkably fast, but not three days.
"take the Orion Nebula. It's 1,500 light years away."
TodayAbout 1,500–1,600 light years was the standard figure in 1996. VLBA and VERA radio parallaxes (2007–2008) measured about 1,350 light years (about 414 pc).
"black holes. All this is far too complicated for me."
TodayThe folded-balloon shortcut between two distant points is a wormhole (named by Wheeler in 1957), not a black hole. Black holes are not tunnels or shortcuts.
"the matter-antimatter ships that would travel at the speed of light."
TodayUnder special relativity nothing with mass can reach the speed of light, however it is powered. Antimatter propulsion could in theory reach a good fraction of it. The "never say never" framing presents a physical law as a technical obstacle. (The 1 billion km/h conversion is correct.)
"Pegas 51 in sight."
TodayThe closing scene of a spaceship reaching 51 Pegasi to find out "if it is habitable" ignores what was announced in 1995. 51 Pegasi b is a gas giant of about half a Jupiter mass, orbiting its star every 4.2 days at about 0.05 AU, at over 1,000 °C. It was the first "hot Jupiter", and nobody thought it could be habitable.