We know about these Aryans primarily because they left behind religious texts, the earliest of which is called the Vedas. The Vedas are also the earliest text of what will come to be known as Hinduism, although it wasn't known as Hinduism then. And they're responsible for tons of stuff, but we only have ten minutes, so let's just cut to Part 2, the caste system. The caste system is one of India's most enduring and fascinating institutions. Let us read from one of the Vedas about Purusha, the universe-pervading spirit. When they divided Purusha, in how many different portions did they arrange him? What became of his mouth?