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TIL Color blindness isn’t common in females because there’s a low likelihood that a female will inherit both genes required for the condition. However, only one gene is needed for red-green color blindness in males. Globally, 1 in 12 males and 1 in 200 females are colorblind.

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ANQo4 TIL, the placenta that forms with a fetus isn't created by the mother. It grows from the fertilized egg and some fetuses actually develop outside the uterus attached to the intestines in the body cavity.
7ronp TIL an astronomer travelled to India in 1760 to observe Venus. His ship blew off course, and he missed the date. He stayed in India for 8 years to try again, but the sky was too cloudy. When he returned home, he had been declared dead, his wife remarried, his estate plundered, and his job lost
oRMx8 TIL the surprising history of Christmas trees
OBLX TIL that a Royal Navy officer sentenced to death at Sachsenhausen concentration camp managed to shoot dead the commander of his firing squad using the man’s own pistol.
N7dd6 TIL that Tom Cruise split with all 3 of his wives when they were 33.