The Vedic period, named after the Vedic religion of the Indo-Aryans of the Kuru Kingdom, lasted from c. 1750 to 500 BCE. The Indo-Aryans were a branch of the Indo-European language family, which many scholars believe originated in Kurgan culture of the Central Asian steppes. Indeed, the Vedic religion, including the names of certain deities, was in essence a branch of the same religious tradition as the ancient Greeks, Romans, Persians, and Germanic peoples. For example, the Vedic god Dyaus Pita is a variant of the Proto-Indo-European god *Dyēus ph2ter (or simply *Dyēus), from which also derive the Greek Zeus and the Roman Jupiter. Similarly the Vedic Manu and Yama derive from the PIE *Manu and *Yemo, from which also derive the Germanic Mannus and Ymir.