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TIL: Martha Washington lived in "The White House", a plantation owned by her first husband, John Custis. The actual White House was finished and first occupied by President John Adams, and was first actually called the "White House" by Teddy Roosevelt.

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x6vY1 TIL that evening-oriented (more alert at night) women (but not men) tend to be more unrestricted in sexual behavior, attitude, and desire according to a worldwide survey known as the Sociosexual Orientation Inventory.
DGWv TIL: Dr Barry Marshal was convinced that H. pylori bacteria caused stomach ulcers, but no one believed him. Since it was illegal to test his theory on humans, he drank the bacteria himself, developed ulcers within days, treated them with antibiotics and went on to win a Nobel prize
O8dg TIL in the 1960s an Indo-American expedition tried to place a nuclear-powered monitoring device on a peak in the Himalayas, but it was lost in an avalanche. 5 kilograms of plutonium remain unaccounted for, somewhere near the source of the Ganges River.
Jp0B TIL an Australian doctor named Dr Jack Barnes stung himself, his nine year old son, and a local lifeguard with the Irukandji jellyfish to prove it was the then-unknown cause of Irukandji Syndrome. All three developed the syndrome, and the jellyfish was named Carukia barnesi after him.
Yo7G TIL John Landis, director of Michael Jackson’s Thriller video, violated child labor laws when he hired 6-year-old and 7-year-old actors for the Twilight Zone movie. Both of the child actors, along with actor Vic Morrow, were decapitated by helicopter blades when a scene they were filming went wrong.