an Entity references as follows:
The history of Tucson, Arizona began thousands of years ago. Paleo-Indians practiced plant husbandry and hunted game in the Santa Cruz River Valley from 10,000 or earlier BCE. Archaic peoples began making irrigation canals, some of the first in North America, around 1,200 BCE. The Hohokam people lived in the Tucson area from around 450–1450 CE in a complex agricultural society.