The Hohokam reached an apex of sociopolitical development between the twelfth and fifteenth centuries in the Sonoran Desert of North America. Hallmarks of the Hohokam tradition included red-on-buff pottery, large-scale canal irrigation agriculture, and monumental buildings, including ball courts, platform mounds, towers, and Great Houses. The development and elaboration of Hohokam society from their ceramic-producing predecessors during more than two millennia (ca. 1000 B.C. to A.D. 1450, or later) is a remarkable example of an arid land adaptation in the New World. The enigmatic collapse of Hohokam society took place shortly before European colonialists entered the North American Southwest in the mid–sixteenth century. Various agents (e.g., floods, disease, warfare) of this event are poorly understood and require additional study. So, too, does the degree of historical continuity between contemporary indigenous peoples and precontact archaeological cultures (e.g., Hohokam) in what is now Arizona and northern Mexico.