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TIL that girls who grow up with a stepfather begin menstruating about 1 year earlier than those who grow up with their biological father

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E1XY7 TIL Henry Hans Ernst Marwede, German pilot who fought against the Allies during WW1, was decorated with the Iron Cross, could not accept the rise of Nazism and went to France, avoided internment by joining the Foreign Legion, and sided with the Allies in WW2.
Y74ad TIL on July 30, 1916, a freight car loaded with TNT exploded at a munitions depot on Black Tom Island in New York Harbor. The blast registered as a 5.5 magnitude earthquake and was felt 90 miles away in Philadelphia. The Statue of liberty's torch has been closed since.
4Eva TIL that a scientific study concluded that Cow Tipping is impossible and an urban legend. Cows are hyper-aware of their surroundings and it takes 2,910 newtons of force to topple them over. They also sleep lying down.
wLGx8 TIL Ernest Hemmingway was gifted a 6-toed cat named Snow White. Snow White's 40-50 descendants still live at his Florida home. Over half of them also have 6 toes.
xV7Qg TIL that the White House was renovated between 1949 and 1952 and that historian refer to this period as "The Truman Reconstruction"