› added 12 years ago

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TIL 1 out of 255 women and 1 out of 12 men have some form of color vision deficiency. Test yourself!

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QNyGL TIL that through a combination of using limes instead of lemons, long term storage of the juice, and exposure to copper the scurvy-prevention power of citrus juice was nullified and scurvy saw a resurgence in the arctic and antarctic explorations of the late 1800s and early 1900s
6Ev0X TIL that humans have gone to space every year since 1961
ZpJgp TIL Sally Hemings, Thomas Jefferson's enslaved underage mistress, was also his wife's half sister
X6JR TIL that snub-nosed dog breeds continually struggle to breathe because of their deformity
jrYv TIL decapitation does not mean instant death.