jack and jill went up the hill to fetch a pail of water so they say
Jack and Jill (nursery rhyme) "Jack and Jill" (sometimes "Jack and Gill", particularly in earlier versions) is a traditional English nursery rhyme. The Roud Folk Song Index classifies this tune and its variations as number 10266. The rhyme dates back at least to the 18th century and exists with different numbers of verses each with a number of variations. Several theories have been advanced to explain its origins and to suggest meanings for the lyrics.