estimated that fully 100,000 people must have inhabited the valley of the Gila alone.
Arizona was settled by Spanish missionaries from Mexico as early as 1687.
These missions were principally seated on the Lower Colorado and Gila rivers.
The Territory formed a part of Mexico until its purchase by the United States in 1850.
It was organized into a Territory by act of Congress, Feb. 24, 1863, with its area described as comprising all the United States lands west of longitude 109° to the California line.
Since then the northwest corner has been ceded to Nevada.
It is a mountainous region, and some of the northern portion remains unexplored.
Population in 1890, 59,691; in 1900, 122,212.
To one of the pioneer explorers of the Arizona region the Zuni Indians gave the following account of their origin as preserved in their traditions.
Their legend relates that in the beginning a race of men sprang up out of the earth, as plants arise and come forth in the spring.
This race increa