TIL: Cows didn't moo until the 1540s
TIL: Cows didn't moo until the 1540s
www.etymonline.com Moo - Etymology, Origin & Meaning
"to make the characteristic cry of a cow, to low," 1540s, of imitative origin (compare… See origin and meaning of moo.
Before that they 'low'ed (In English).