In a still smaller way, and without as great a freedom from southern influences, the tribes of the treeless Plains, in the heart of the continent, developed a little civilization of their own. This was founded on what they had originally got from the Southwest and Southeast, was remodeled on the basis of an almost exclusive dependence on the buffalo, and underwent a brief and stirring efflorescence from the seventeenth to the nineteenth century, after the Plains tribes had got horses from the Spaniards. Here, then, grew up customs and appliances like the tepee, the travois, the camp circle, warfare as a game with “coups” as counters.