where did the song mares eat oats come from
Mairzy Doats Milton Drake, one of the writers, said the song had been based on an English nursery rhyme. According to this story, Drake's four-year-old daughter came home singing, "Cowzy tweet and sowzy tweet and liddle sharksy doisters."[4] (Cows eat wheat and sows eat wheat and little sharks eat oysters.)
Ring a Ring o' Roses "Ring a Ring o' Roses" or "Ring Around the Rosie" or "Ring a Ring o' Rosie" is a nursery rhyme or folksong and playground singing game. It first appeared in print in 1881, but it is reported that a version was already being sung to the current tune in the 1790s and similar rhymes are known from across Europe. It has a Roud Folk Song Index number of 7925. Urban legend says the song originally described the plague, specifically the Great Plague of London, or the Black Death, but folklorists reject this idea.[2]