Let us imagine we are in a village of an Aryan tribe in the Eastern Panjab something more than thirty centuries ago. It is made up of a few large huts, round which cluster smaller ones, all of them rudely built, mostly of bamboo; in the other larger ones dwell the heads of families, while the smaller ones shelter their kinsfolk and followers, for this is a patriarchal world, and the housefather gives the law to his household. The people are mostly a comely folk, tall and clean-limbed, and rather fair of skin, with well-cut features and straight noses; but among them are not a few squat and ugly men and women, flat-nosed and nearly black in colour, who were once the free dwellers in this land, and now have become slaves or serfs to their Aryan conquerors. Around the village are fields where bullocks are dragging rough ploughs; and beyond these are woods and moors in which lurk wild men, and beyond these are the lands of other Aryan tribes.