There must have been, then, from the beginning of kingship and religious service, a division among the Aryans into royalty, priests, and people, i.e., whoever were not acting as priests or chieftains.

When the people becomes agricultural, the difference tends to become permanent, and a caste system begins.

Now, the Vedic Aryans appear in history at just the period when they are on the move southwards into India; but they are no irrupting host.

The battles led the warriors on, but the folk, as a folk, moved slowly, not all abandoning the country which they had gained, but settling there, and sending onwards only a part of the people.

There was no fixed line of demarcation between the classes.