Phronesis
Subject · 70 ideas

History

What happened, and why it still matters.

Code de Hammurabi, roi de Babylone ; face avant.
No. 054LawLaw

“An eye for an eye” was a step forward

Hammurabi’s 3,800-year-old law code sounds brutal, but it was an attempt to make punishment proportionate, public and predictable.

2 minc. 1754 BC
No. 069Word originCountries

“Kazakh” and “Cossack” are the same word

The name of the Kazakh people most likely means a free wanderer, and the Cossacks of Ukraine and Russia share the same root.

2 min15th century
No. 130Word originLanguage

“Ye Olde Shoppe” was always pronounced “the”

The “Y” in “Ye Olde” is a lost English letter, þ (thorn), in disguise. Nobody ever said “yee”.

2 min14th–17th century
No. 043StoryLiterature

A volcano gave us Frankenstein

A massive eruption in Indonesia in 1815 caused a cold, stormy summer in Switzerland, which kept a group of writers indoors telling ghost stories.

2 min1815–1818
No. 032EventArtificial Intelligence

AI got its name from a summer workshop proposal

In 1955 four researchers asked for funding for “a 2-month, 10-man study of artificial intelligence”, confident they could make a significant advance in one summer.

2 min1955–1956
No. 003ConceptArtificial Intelligence

AI has gone through “winters” before

In 1970 a founder of AI predicted human-level machines within three to eight years. Within a few years funding collapsed, and it collapsed again in the late 1980s.

2 min1974–1980 · 1987–1990s
No. 010Word originLanguage

Basque is related to no other language on Earth

Spanish, French, English, Russian and Hindi are all distant cousins. Basque, spoken between Spain and France, is no one’s cousin at all.

2 min▶ Animation
Image illustrating “Before 1492, Italy had no tomatoes and Thailand had no chillies”
No. 029ConceptCuisine & Food

Before 1492, Italy had no tomatoes and Thailand had no chillies

Many “ancient” national dishes depend on ingredients that crossed the Atlantic after Columbus. Some of them are surprisingly recent.

2 minafter 1492
Caesar salad in Milestones restaurant in Yaletown, downtown Vancouver BC Canada
No. 020DishCuisine & Food

Caesar salad was invented in Mexico

It has nothing to do with Julius Caesar. It was improvised in Tijuana in the 1920s by an Italian-American restaurateur named Caesar Cardini.

1 min1924
No. 087FactCuisine & Food

Carrots used to be purple

The earliest cultivated carrots were purple and yellow. The orange carrot became dominant in the Netherlands, and a famous patriotic explanation for it is probably a myth.

2 min16th–17th century
Pyramid of Khufu - May 2023
No. 027FactHistory

Cleopatra lived closer to the Moon landing than to the pyramids

The Great Pyramid was already about 2,500 years old when Cleopatra was born. Ancient history is much longer than it feels.

2 minc. 2560 BC → 30 BC → 1969
Portrait en soie tissée de Jacquard
No. 064ObjectInventions

Computers began as looms

The first machine controlled by punched cards was not a calculator. It wove silk.

2 min1804
No. 039Word originLanguage

Esperanto has native speakers

An invented language from 1887 has around a thousand people who grew up speaking it from birth, and both Hitler and Stalin persecuted it.

2 min1887
No. 040PersonMathematics

Fibonacci’s real legacy wasn’t the sequence

The rabbit puzzle made him famous, but Fibonacci’s real impact was teaching Europe to write numbers the way we do now.

2 min1202
No. 041DishCuisine & Food

Fortune cookies are Japanese, by way of California

You won’t find fortune cookies in China. They descend from a Kyoto cracker, reached America through Japanese immigrants, and were taken over by Chinese restaurants during World War II.

2 minearly 1900s
The constituent lands of the French Republic
No. 042FactCountries

France has more time zones than any other country

Not Russia, not the United States: France. And mainland France itself runs an hour ahead of where its geography says it should, because of 1940.

2 min
No. 033EventArtificial Intelligence

From a bedroom GPU to ChatGPT

In 2012 a neural network trained on two gaming graphics cards in a student’s bedroom crushed an image-recognition contest. Ten years later, chatbots built on the same lineage reached the public.

2 min2012 · 2017 · 2022
General Tso's Chicken on a bed of white rice with broccoli. Photographed in the Oakmore neighborhood of Oakland, California, USA.
No. 045DishCuisine & Food

General Tso’s chicken is unknown in General Tso’s home province

America’s favourite Chinese takeaway dish was invented in Taiwan, sweetened in New York, and was too sweet to sell in Hunan.

2 min1950s–1970s
No. 094StoryArtificial Intelligence

In 1958 the Navy said its neural network would one day be conscious

The first trainable neural network, the perceptron, was announced as the embryo of a computer that would “walk, talk, see, write, reproduce itself and be conscious of its existence”.

2 min1958
Typical home made Japanese curry rice with beef, onions, carrots and potatoes.
No. 066DishCuisine & Food

Japan learned curry from the British Navy

Japanese curry came from India by way of the British, was adopted by the Japanese navy to fight a deadly vitamin deficiency, and is still served on navy ships every Friday.

2 min1872
No. 005FactReligion & Belief

Jesus was probably born “Before Christ”

The AD system was invented in 525 by a monk who got the date slightly wrong. Most historians place Jesus’s birth around 6–4 BC.

2 min525
No. 019ConceptHistory

Julius Caesar’s secret code (and why it failed)

Caesar hid messages by shifting each letter three places. It worked until a 9th-century scholar invented a way to break any cipher like it.

2 min1st century BC
No. 068Word originCountries

Kazakh has been written in three alphabets in a century

Kazakh moved from Arabic script to Latin in 1929, to Cyrillic in 1940, and is moving back to Latin today. Kazakhs in China still use the Arabic script.

2 min1929 · 1940 · 2017
One of the excavated kurgans at the Issyk kurgan site in Kazakhstan.
No. 046ObjectCountries

Kazakhstan’s national symbol might be a woman

The “Golden Man” on top of Almaty’s Independence Monument is a Saka warrior found in 1969 in a costume of about 4,000 gold pieces. Archaeologists still can’t say for sure whether the warrior was a man.

2 min4th–3rd century BC · found 1969
No. 072DishCuisine & Food

Ketchup started out as a fish sauce

Before it was red and sweet, ketchup was a salty, fermented fish brine from southern China, and later a British sauce made from mushrooms or walnuts.

1 min1812
It shows Pacioli standing behind a table and wearing the habit of a member of the Franciscan order. He draws a construction on a board, the edge of which bears
No. 035ConceptEconomics

Leonardo’s math teacher wrote the first guide to accounting

The friar who taught Leonardo da Vinci mathematics also published the first printed guide to double-entry bookkeeping, the system nearly every company still uses.

2 min1494
No. 077Word originDesign

Lorem ipsum is a mangled Cicero quote

Designers’ favourite placeholder text is a scrambled passage from a 2,000-year-old book about pain and pleasure.

1 min45 BC
Faravahar symbol on Fire Temple of Yazd, Iran
No. 131ConceptReligion & Belief

One of the oldest faiths, and Freddie Mercury’s

Zoroastrianism was once the state religion of Persian empires. Today it has perhaps 100,000–200,000 followers, among them the Parsi community into which Freddie Mercury was born.

2 min
Full view of Tenochtitlán
No. 089FactHistory

Oxford University is older than the Aztec Empire

Teaching at Oxford was under way by 1096. Tenochtitlan, the Aztec capital, was founded in 1325.

1 min1096 · 1325
No. 093FactArt

Pandas are almost absent from classical Chinese art

Dragons, tigers, cranes and even crickets fill Chinese painting and poetry. The animal now synonymous with China barely appears at all.

2 min
No. 096FactFashion & Trends

Pink for girls and blue for boys is younger than your grandparents

A century ago a trade magazine told shops that pink was for boys. The colour code we treat as ancient only settled in the mid-20th century.

2 min1918 · 1940s
No. 116Word originLanguage

Tea if by sea, chai if by land

Almost every language calls tea either “te” or “cha”, and which one it uses depends on how tea first arrived: by Dutch ship or by overland trade.

2 min
Tempura
No. 118DishCuisine & Food

Tempura was brought to Japan by the Portuguese

One of Japan’s most iconic dishes arrived with Portuguese missionaries and traders in the 16th century, and its name may come from Latin.

2 min16th century
No. 016FactCountries

The “last wild horse” descends from tamed horses of the Kazakh steppe

5,500 years ago, people at Botai in northern Kazakhstan were bridling horses and probably milking mares. Their horses’ descendants became Przewalski’s horse, long thought to be truly wild.

2 minc. 3500 BC
This is about 30 Gros Michel Bananas sitting on a countertop from various angles in various stages of ripening
No. 053FactCuisine & Food

The banana your grandparents ate is gone

Until the 1950s, the world’s export banana was the Gros Michel. A fungus wiped it out, and the Cavendish we eat today may face the same fate.

2 min1950s
From book that tried to explain the illusions behind the Kempelen chess playing automaton (known as The Turk) after making reconstructions of the device.
No. 080ObjectArtificial Intelligence

The chess-playing machine that had a man inside

From 1770, a turbaned mechanical figure beat players across Europe and America at chess. It was a brilliant hoax, and Amazon named a service after it.

2 min1770
Городище Отырар с воздуха
No. 088EventCountries

The city in Kazakhstan that provoked Genghis Khan

In 1218 the governor of Otrar, a Silk Road city in today’s southern Kazakhstan, executed a Mongol trade caravan. The insult launched one of the most destructive invasions in history.

2 min1218–1219
No. 028StoryEconomics

The cobra effect: when rewards backfire

Pay people to kill pests and some of them will start breeding pests. The famous cobra version may be a legend, but the rat version in Hanoi really happened.

2 min1902
This was the first fully-automatic calculating machine. British computing pioneer Charles Babbage (1791-1871) first conceived the idea of an advanced calculatin
No. 004ObjectTechnology

The computer that was designed in 1837

Charles Babbage designed a steam-age machine with memory, a processor and punched-card programs, then never finished building it.

1 min1837
Image illustrating “The country that gave up the world’s fourth-largest nuclear arsenal”
No. 105EventCountries

The country that gave up the world’s fourth-largest nuclear arsenal

The Soviet Union set off 456 nuclear explosions in Kazakhstan. After independence, Kazakhstan closed the test site and gave up about 1,400 nuclear warheads.

2 min1949–1991
No. 031DishCuisine & Food

The croissant is Austrian (sort of)

France’s most famous breakfast pastry descends from the Viennese kipferl, brought to Paris by an Austrian entrepreneur around 1839.

2 min1839
No. 034PhenomenonMusic

The devil’s interval was never banned

The tritone is said to have been outlawed by the medieval Church as ‘the devil in music’. The phrase is real, but the ban looks like a story that grew in the retelling.

2 minc. 1700s
Photograph of Ignaz Semmelweis in 1860 by "Borsos és Doctor" (cropped version); this image inspired the famous engraving of Semmelweis by Jenő Doby.
No. 106PersonPeople

The doctor who said “wash your hands”

In 1847 Ignaz Semmelweis cut deaths on a Vienna maternity ward from about 18% to around 2% by making doctors wash their hands. The story of what happened next is more complicated than the legend.

2 min1847
No. 002ConceptArtificial Intelligence

The dream of thinking machines is thousands of years old

Long before computers, people imagined bronze giants, reasoning wheels and a language in which arguments could be settled by calculation.

2 minantiquity → 1920
No. 103DishCuisine & Food

The Earl of Sandwich probably wasn’t gambling

The sandwich is named after an 18th-century earl. The famous story that he invented it at the card table comes from a travel book’s gossip.

2 min1760s
No. 030StoryTechnology

The first computer bug was an actual bug

In 1947 engineers found a moth stuck in a computer and taped it into the logbook. The word “bug” was already older than that.

2 min1947
Ada Lovelace daguerreotype by Antoine Claudet 1843 - cropped
No. 001PersonTechnology

The first computer programmer was a poet’s daughter

In 1843, a century before electronic computers, Ada Lovelace wrote out a program and imagined machines making music.

2 min1843
No. 009PlaceCountries

The first human in space took off from Kazakhstan

Sputnik and Yuri Gagarin both launched from Baikonur, on the Kazakh steppe. Today Russia rents the cosmodrome, and the town around it, from Kazakhstan.

2 min1957 · 1961
Front page of HaZvi, a Hebrew-language newspaper published in Jerusalem from 1884 to 1914 by Eliezer Ben-Yehuda, a leading pioneer of the revival of Hebrew as a
No. 057StoryLanguage

The language that came back after 1,700 years

For about 1,700 years nobody spoke Hebrew as a mother tongue. Then, in 1882, a baby in Jerusalem became its first native speaker in modern times.

2 min1880s
No. 081LawLaw

The man behind the Miranda warning

“You have the right to remain silent” is named after Ernesto Miranda. He won his Supreme Court case and was convicted again anyway.

2 min1966
NASA FIRMS imagery 2025-07-20 of Serpukhov-15 satellite ground station. NB. The terrain imagery is older and undated
No. 114EventPeople

The man who decided the missiles weren’t real

In 1983 a Soviet early-warning system reported five American nuclear missiles on their way. The officer on duty, Stanislav Petrov, judged it a false alarm, and he was right.

2 min26 September 1983
Image illustrating “The Mona Lisa became famous by being stolen”
No. 082StoryArt

The Mona Lisa became famous by being stolen

In 1911 a handyman walked out of the Louvre with the Mona Lisa under his smock. The two years it was missing turned it into the most famous painting in the world.

2 min1911
Neapolitan pizza at Trappica
No. 097DishCuisine & Food

The pizza Margherita story is probably a myth

Every pizzeria tells it: in 1889 a Naples pizzaiolo invented a red, white and green pizza for Queen Margherita. Historians have found little evidence it happened.

2 min1889 (legend)
Sator square Sator Arepo Tenet Opera Rotas (word square, palindrome) in Oppède (France). The letters S and N are reversed as in an ambigram.
No. 104ObjectHistory

The Sator Square

A five-word Latin puzzle scratched on a wall in Pompeii reads the same in four directions. Nobody agrees on what it means.

2 minbefore 79 AD
No. 107ConceptPhilosophy

The Ship of Theseus

If you replace every plank of a ship one by one, is it still the same ship? And if someone builds a second ship from the old planks, which one is the original?

2 min1st century AD
No. 112StoryLaw

The snail in the ginger beer

A woman in Paisley, a bottle of ginger beer and a snail that was never proved to exist became the case on which the modern law of negligence rests.

2 min1928–1932
Terracotta Army in Xi'an, China
No. 119ObjectHistory

The Terracotta Army was found by farmers digging a well

In 1974 farmers near Xi’an dug into an army of more than 8,000 clay soldiers. The emperor’s tomb next to it has never been opened, and the soil around it contains unusually high levels of mercury.

2 minc. 210 BC · found 1974
An illustration from Jules Verne's book "Découverte de la terre" ("Discovery of the Earth") drawn by Léon Benett. Ibn Battuta (1304-68/69) was a Maghrebi Berber
No. 062PersonPeople

The traveller who went five times farther than Marco Polo

In 1325 a 21-year-old from Tangier set out on pilgrimage to Mecca. He came home 29 years later, having travelled an estimated 117,000 km.

2 min1325–1354
William Fothergill Cooke and Charles Wheatstone's electric telegraph ("needle telegraph") from 1837 now in the London Science Museum
No. 117ObjectTechnology

The Victorian internet

Long before email, the telegraph gave the 19th century online romance, hackers, slang and information overload.

1 min1844
No. 120FactEveryday Life

Three meals a day is a fairly modern habit

In much of medieval northern Europe, people ate two main meals: a midday dinner and an early supper. Breakfast became normal because of towns, work and school.

2 min1500–1600
חלקת צבעוני רחב עלים (Tulipa gesneriana) בפריחה בגן הבוטני בירושלים. צבעוני רחב עלים הוא צמח נוי תרבותי ממשפחת השושניים. זהו גאופיט בעל בצל שמקורו באסיה. בזכות
No. 122FactCountries

Tulips are Central Asian, not Dutch

Long before the Netherlands made them famous, tulips were wild flowers of the Tian Shan and Pamir mountains, where many species still bloom every spring.

2 min1594
No. 126PlaceCities

Venice stands on an upside-down forest

Under the palaces of Venice are millions of wooden stakes driven into the mud of the lagoon, some of them for more than a thousand years.

2 min
No. 129PlaceCities

Who lives in Xi’an’s Muslim Quarter

In the heart of an ancient Chinese capital is a mosque that looks like a Buddhist temple, run by a Muslim people descended partly from Silk Road traders.

2 minsince the Tang dynasty
Depiction of the Nativity using Christmas lights. Removal of connective wires and piece of wood obscuring the creche using photo editing software.
No. 026FactReligion & Belief

Why Christmas is on 25 December

The Bible never gives a date for Jesus’s birth. Historians have two main explanations for 25 December, and many Orthodox Christians celebrate on 7 January.

2 minc. 336
Macro photograph of the "OK" button on a TV remote control
No. 086Word originLanguage

Why do we say “OK”?

The world’s most recognised word began as a deliberately misspelled joke in a Boston newspaper.

2 min1839
No. 051PhenomenonLanguage

Why English spelling makes no sense

English spelling was frozen just as the language’s vowels were changing, so the spelling records an accent nobody has had for centuries.

2 minc. 1400–1700
No. 067ConceptCountries

Why many Kazakhs can name seven generations of ancestors

A Kazakh child is traditionally expected to know seven fathers back, and the rule exists to prevent marriage between relatives.

2 min
No. 076LawFashion & Trends

Why your parents’ clothes look ridiculous, and your grandparents’ look charming

In 1937 a museum curator mapped how we feel about a style over time: “indecent” ten years early, “hideous” ten years late, “charming” after seventy.

2 min1937
From Paludan's source: "Early 8th century murals in Prince Yide's tomb give an idea of the magnificence of Chang'an's city walls with their towering gate and co
No. 022PlaceCities

Xi’an was once one of the largest cities on Earth

Around 750, the city now called Xi’an was Chang’an: a “million-man city” at the eastern end of the Silk Road, home to Persians, Sogdians, Arabs and Christian monks.

2 min202 BC – 907 AD
No. 052FactCountries

You can’t see the Great Wall from the Moon

The famous claim was made in 1754, two centuries before anyone went to space. China’s first astronaut said he couldn’t see it.

2 min