The main pueblos were located in Chaco Canyon, in northwestern New Mexico. There, Anasazi society developed from 600 AD until the second half of the 12th century, and at its peak Pueblo Bonito, the region's main stronghold and mixed political, economic and religious center, housed around 1,200 inhabitants - 25% of all the canyon population.
A walk through the Chaco Canyon nowadays causes astonishment to the visitors. The region is uninhabited and occupied by sparse and low vegetation.
It is A. The cold war rivalry between the two nations in the 1950s because both feared that one would bomb the other leading to the end of the world.<span />
