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Andean weavers created water-resistant ponchos
History

Andean weavers created water-resistant ponchos

Tightly spun local fibers made dense garments that repelled water, serving as rainwear long before synthetic fabrics existed.

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Chinese artisans painted inside tiny glass bottles
History

Chinese artisans painted inside tiny glass bottles

Using bent brushes with just a few hairs, artists painted intricate landscapes and calligraphy on the inside of the glass.

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Romans kept lifelike masks of their dead
History

Romans kept lifelike masks of their dead

Noble Roman families displayed lifelike masks of deceased relatives at home, turning ancestry into part of the household décor—and giving visitors a very…

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Why the Incas blew crushed seashells into the wind
History

Why the Incas blew crushed seashells into the wind

Spondylus shells came from the Pacific and were considered sacred. During droughts, Inca priests ground them into dust and scattered it into the wind, hoping…

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First reflective telescopes used mirrors made of speculum
History

First reflective telescopes used mirrors made of speculum

Speculum mirrors gave early reflecting telescopes their light-gathering surface, but the copper-and-tin alloy tarnished fast. Astronomers had to repolish it…

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Why ancient Persians debated decisions drunk and sober
History

Why ancient Persians debated decisions drunk and sober

A proposal had to survive two tests: the Persians debated it drunk, then reconsidered it sober. If they reached the same conclusion both times, they accepted…

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Hegel returned to Berlin during the epidemic he had fled
History

Hegel returned to Berlin during the epidemic he had fled

The philosopher left the city during the 1831 cholera outbreak, then returned and died that November after a brief illness. Cholera was the diagnosis recorded…

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A suffragette slashed one of London's most famous paintings
History

A suffragette slashed one of London's most famous paintings

In 1914, Mary Richardson attacked Velázquez's Rokeby Venus at the National Gallery in protest over the treatment of Emmeline Pankhurst. The museum closed to…

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One volcano helped turn 1816 into the Year Without a Summer
History

One volcano helped turn 1816 into the Year Without a Summer

Tambora's 1815 eruption sent gases high into the atmosphere, where sulfur-containing aerosols reduced the sunlight reaching the surface. Parts of Europe and…

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When pregnancy tests involved injecting urine into frogs
History

When pregnancy tests involved injecting urine into frogs

Doctors injected urine from pregnant women under the skin of African clawed frogs; within hours, the hormone in the urine could trigger the frogs to lay eggs,…

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Whiskey's name makes a rather ambitious promise
History

Whiskey's name makes a rather ambitious promise

The word comes from the Gaelic phrase meaning “water of life.” The phrase survived as the drink's name while its pronunciation changed in English. Ordering a…

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Ghost marriages give the dead a place in a family structure
History

Ghost marriages give the dead a place in a family structure

In some Chinese traditions, families have arranged marriages involving deceased people, including those who died unmarried. The custom can address beliefs…

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Roman sailors ran the Colosseum's giant sunshade
History

Roman sailors ran the Colosseum's giant sunshade

The Colosseum's canvas velarium relied on a system of ropes, so sailors from the Roman navy worked it to shade spectators. In Rome, even keeping the crowd…

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The discoverer of Uranus imagined people living on the Sun
History

The discoverer of Uranus imagined people living on the Sun

In 1795, William Herschel proposed that the Sun had a solid, potentially inhabited surface beneath its luminous atmosphere. He interpreted sunspots as…

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France once punished people for speaking Breton
History

France once punished people for speaking Breton

French authorities pushed a common language as a tool of national unity, and speakers of Breton could be punished for using their own. The effort to make…

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Hachiko returned to Shibuya Station for nine years
History

Hachiko returned to Shibuya Station for nine years

After his owner died, Hachiko kept returning to the station where they had met, every day for nearly nine years. He kept making the trip long after there was…

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The warrior monks who ruled a Baltic state
History

The warrior monks who ruled a Baltic state

Religious vows and territorial ambition shared one government: the Teutonic Knights ruled a militarized theocracy around the Baltic and expanded it by force.

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Poe’s fictional detective helped make Sherlock Holmes possible
History

Poe’s fictional detective helped make Sherlock Holmes possible

The Murders in the Rue Morgue introduced C. Auguste Dupin in 1841: an eccentric thinker whose reasoning is presented through a companion’s account. That…

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