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TIL The Tlaxcaltecan (Rivals of the Aztec) fought alongside Ottoman Turks against Chinese Pirates and Japanese Ronin in the Castilian War

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nZG7 TIL modern Westerners tend to have a lifelong attraction to fire because they don’t learn to start, maintain, and master fire during childhood. However, in cultures where fire is used as a tool from a young age, interest in it wanes around age 7.
VBALQ TIL that — through the lens of modern data analytics — a simple voice recording can yield thousands of speech parameters that may reveal a user’s biometric identity, body shape, personality traits, mental & physical health, emotions, drug habits, geographical origin, and socioeconomic status.
O5RX TIL: that up to 75% of all adult African Americans and Native Americans and 90% of Asian Americans are lactose intolerant.
j6Xgj TIL Visual fixation is the ability to maintain your gaze on a single location. It's a short list of the species that we have confirmed have this ability; cats are on it, but dogs aren't.
xVNgB TIL The Antonov A-40 was a Soviet attempt to allow a tank to glide onto a battlefield after being towed aloft by an airplane. The tank had to be stripped most of it's armament, ammunition and headlights, however the prototype still failed.