Now the primary pieces of the Vedas are the Rig Veda, the Yajur Veda, the Sama Veda, and the Atharva Veda. And the Rig Veda in particular is considered the oldest of the Vedas. It's believed that it was composed around the early part of that Vedic period, between maybe 1500 BCE and around 1200 BCE. So we're talking over, we're talking between 3,000 and 3,500 years ago. While these three Vedas, we believe, were composed later. Now these Indo-Aryans, it's believed, were essentially pastoralists. They were cattle herders, perhaps nomadic.