The publication of Thomas Hobbes' Leviathan occurred in 1661. The book's publication occurred one year after the Restoration of the English monarchy in 1660. The Restoration occurred after the short-lived English Commonwealth led by Oliver Cromwell from 1653-1659. Cromwell had come to power as a result of the English Civil Wars and was known as a Roundhead. The term Leviathan is drawn from the Old Testament and refers to a multiheaded sea monster. In Hobbes work, the intent is to present a treatise on politics and is one of the most important examples of social contract theory. It argues for the importance of a social contract and rule by an absolute sovereign. He favored a strong undivided government that could serve as a bulwark against civil war.