“Happy Birthday” was originally known as “Good Morning to All.” “Happy Birthday” is one of the most recognizable songs in history, sung in many different languages all around the world. Written in 1893 by Patty Smith Hill, a director at the Louisville Experimental Kindergarten School in Kentucky, and her sister Mildred J. Hill, an educator and musician, the song originally appeared in a book of music titled Song Stories for the Kindergarten — or at least, the melody did. The tune was actually titled “Good Morning to All,” and it was meant as a cheerful classroom greeting for young children, with the lyrics: “Good morning to you / Good morning to you / Good morning, dear children / Good morning to all.” By March 1924, the melody appeared in a songbook with altered lyrics opening the second verse: “Happy birthday to you.” It was published with incremental lyrical changes over the years, and by 1933, 40 years after its inception, the song was widely known as “Happy Birthday to You.”