Sheet music for the song Good Morning To All is seen in this undated photo by the University of Louisville, Kentucky. Composed by sisters Mildred and Patty Hill sometime in the 19th century, the song would eventually be reborn as Happy Birthday To You, one of the most well-known melodies in the world. Photo: Reuters/University of Louisville
A college librarian in Kentucky has found the 19th-century manuscript of a musical number that gave rise to one of the most widely performed songs in the world, Happy Birthday To You, according to University of Louisville officials on Aug 31.