The Nuttall Encyclopedia
In the Greek mythology a Titan, father of Atlas, Prometheus, and Epimetheus, as the Greeks fabled the ancestor of the human race.
Wood, James, ed. Entry for 'Iapetos'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/i/iapetos.html. Frederick Warne & Co Ltd. London. 1900.