The Two Babylons: Or The Papal Worship proved to be the worship of Nimrod and his wife.

Originally published as a pamphlet in 1853, and expanded to book length in 1858, The Two Babylons seeks to demonstrate a connection between the ancient Babylonian mystery religions and practices of the Roman Catholic Church. Often controversial, yet always engaging, The Two Babylons comes from an era when disciplines such as archeology and anthropology were in their infancy, and represents an early attempt to synthesize many of the findings of these areas and Biblical truth.