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TIL South Africa is the only country in the world that has developed nuclear weapons and then later gave them up

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4Xwy5 TIL A condition among waterfowl called angel wing can be caused by eating bread. In ducks and geese with angel wing, their wings become deformed because the carpal joint grows incorrectly making them unable to migrate. instead of bread, feed corn and peas to ducks and geese.
grKny TIL that in pre-modern China, poor families adopted girls to make sure their sons will be able to marry in future while other poor families with unwanted girls gave away their daughters.
v1wm7 TIL When a billionaire resident dies, states reap an average $165 million windfall from estate taxes
VB1lB TIL that the director of ‘American Psycho’ is the daughter of the guy who played Charlie Farquharson on ‘Hee Haw’
nWBQG TIL that there are crystals that suddenly cannot be recreated, having been replaced globally by more stable forms via global contamination of microscopic seed crystals