What is the origin of song Auld Lang Syne?

"Auld Lang Syne" is a traditional Scottish poem written by Robert Burns (1759-1796), but the melody is much older and believed to be of traditional Scottish folk origin. Burns first published the song in his collection of poems called "The Scots Musical Museum" in 1788. He likely adapted and revised an existing version that was already known and circulating orally among the Scottish people.

The title "Auld Lang Syne" translates to "old long since" or "for old times sake" in Scots language. The lyrics express a wistful and nostalgic feeling, reminiscing about old friends and past times while also hinting at the transience of life. It has become a cherished song that marks the start of new years' celebrations and reunions around the world.