(from the article `pre-Columbian civilizations`) ...Valley, an important passageway between Cuzco and the Lake Titicaca Basin. As a result of their conquest, the Inca were invited to interfere in a ... ...secured a contingent of archers in return for a few bronze tools. The Emperor soon abandoned the campaign because of a revolt that ha... Found on http://www.britannica.com/eb/a-z/c/109