where did rub a dub dub come from
Rub-a-dub-dub "Rub-A-Dub-Dub" is an English language nursery rhyme first published at the end of the eighteenth century in volume two of Hook's Christmas Box[1] under the title "Dub a dub dub" rather than "Rub a dub dub". It has a Roud Folk Song Index number of 3101.