<Dd> Down tumbles Baby, </Dd> <Dd> Cradle and all . </Dd> <P> The version from Songs for the Nursery (London, 1805), contains the wording: </P> <Dl> <Dd> Rock - a-bye, baby, thy cradle is green, </Dd> <Dd> Father's a nobleman, mother's a queen...</Dd> </Dl>

What is the history of rock a bye baby