<Li> "He ain't heavy, he's my brother" has been used as the motto of Boys Town since 1943, and inspired a song He Ain't Heavy, He's My Brother, written by Bobby Scott and Bob Russell, and recorded by The Hollies, Neil Diamond, and other artists . </Li> <Li> "Ain't That a Shame" is a song written by Fats Domino and Dave Bartholomew, released by Imperial Records in 1955, which went on to sell over a million copies and introduced Fats Domino to a wider audience . </Li>

When did they put ain't in the dictionary