wordorigins.org

P17PV TIL The word "man" was originally gender-neutral, hence "one small step for [a] man, one giant leap for mankind". In Old English "wæpman" = male, "wifman" = female, "man" = gender-neutral
yQNPV TIL In 1851 "A muskrat skin was equal to a quarter of a dollar; a racoon skin, a third of a dollar; a doe skin, half a dollar, and a buck skin, “the almighty dollar.”
GY9p4 TIL: The modern use of gay comes from gaycat, a slang term among hobos meaning a boy who accomapnies an older, more experienced tramp, with the implication of sexual favors being exchanged for protection.