The words – originally "hush-a-bye baby," not "rock-a-bye" – first appeared in writing in Mother Goose's Melody, a compilation of nursery rhymes published around 1760. Mother Goose's Melody ...

That’s the incredible staying power of a nursery rhyme. From Ring-a-Ring to Rock-a-Bye, they’re not just hiding in the deeper recesses of your mind, it seems like humanity as a whole just can ...