The Tigris and Euphrates rivers were the cradle of Occidental and Indian civilizations, giving life to the violet race and spreading their culture to surrounding lands. [1] The second garden adjoined the Tigris River, where Adam and his followers established a new center of culture and religion. [2] Sumerians lived at the mouth of the Tigris River, persisting for thousands of years to furnish the Nodite ancestry of the Sumerian peoples. [3]