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TIL the casualty number estimate for Japan’s land invasion came from William Shockley a known Race Eugenicist

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DQPQg TIL the Persians had ancient refrigerators called "yakhchals" to preserve the ice and keep it cold underground until the summer, the yakhchal also had a ventilation system that allowed the cold air to enter and the warm air to escape, keeping the temperature inside low.
4kMrX TIL: Combination weapons such as a Gun-Axe, Mace-Pistol, or Pistol-Falchion were real and date back hundreds of years. In the 1500s -1800s since guns only fired one shot, they attached them to various weapons such as the German Axe-Pistol. In some cases they attached a gun to a shield.
dmoQ TIL 800 different languages are spoken in New York City, making it the most linguistically diverse city on Earth.
JQbB TIL a recent study found that people tend to be more stressed out at home than at work
pYr6Q Today I learned that beavers teeth are yellow in colour because of the iron in their tooth enamel.