Summary.
In concluding this section let us sum up the general facts of ancient American history as these appear in relation to the archæological evidences of the Archaic Horizon.
I. Pre-Archaic Horizon
The peopling of the New World from Asia by tribes on the nomadic plane of culture.
II. The Archaic Horizon
Invention and primary dissemination of agriculture, together with pottery-making and loom-weaving. Homogeneous culture with undeveloped religion and unsymbolic art adjusted to arid tropics.
III. Post-Archaic Horizon
Specialized cultures in North, Central, and South America dependent upon agriculture. Strong local developments in esthetic arts, religious ideas, and social institutions. Agriculture extended to humid tropical and temperate regions.
[Plate XI.]
