› added 4 years ago

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TIL Thomas Jefferson for many years "kept, as his concubine, one of his own slaves” named Sally Hemings.

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awBg9 TIL Science shows that the Egg came first, not the Chicken. 1. The first egg was laid by a bird that was not a chicken. 2. The first amniotic (hard-shelled) egg laid on land was around 312 million years ago. Chickens are domesticated descendants of red junglefowl from at most 8000 years ago.
5Yvj9 TIL that when 10 Downing Street was restored in the 1960s, it was found that its iconic black bricks were actually yellow, and had been stained black by two centuries of urban smog
gronL TIL that the world's first official airmail flight was conducted in 1911 in India, from Allahabad to Naini, over a distance of 13 km. The letters bore an official frank "First Aerial Post, U.P. Exhibition, Allahabad. 1911"
GyeN TIL that Norinco (Chinese firearms manufacturer) guns are no longer imported into the US because the company tried to sell anti-aircraft missiles to US street gangs.
Vrp4 TIL that starting in 1988, the Harvard Medical School partnered with film and TV studios to insert the concept of the “Designated Driver” into popular consciousness. The project was a huge success.