"Bingo", also known as "Bingo Was His Name-O", "There Was a Farmer Had a Dog", or informally "B-I-N-G-O", is an English language children's song of obscure origin. Roud Folk Song Index number of 589. Early versions of the song were variously titled "The Farmer's Dog Leapt o'er the Stile", "A Franklyn's Dogge", or "Little Bingo". Additional verses are sung by omitting the first letter sung in the previous verse and clapping instead of actually saying the word. The earliest reference to any form of the song is from the title of a piece of sheet music published in 1780, which attributed the song to William Swords, an actor at the Haymarket Theatre of London.