The Indo-European peoples (Aryans) have spread across northern India, and are beginning to live in settled villages and tribal states. These are ruled over by the leaders of prominent Aryan clans, now emerging as kings. It is probably around this time that the four earliest castes appear in Aryan society: Brahmins (priests), Ksatriyas (warriors and rulers), Vaisya (the broad mass of tribesmen - farmers, craftsmen and merchants), and the descendents of conquered peoples relegated to a subservient role in society as Sudras (servants and labourers). This simple four-tiered caste system will become ever more elaborate as the history of India progresses.
At this time also, a rich religious oral tradition is being developed, revolving around the doings of the Aryan’s pantheon of gods and goddesses. This will later form the Vedas, the most ancient scriptures of the Hindu world and one of the most important foundations for later Indian civilization.
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