The Early Ceramic period occupation of Tucson saw the first extensive use of pottery vessels for cooking and storage.

Jesuit missionary Eusebio Francisco Kino visited the Santa Cruz River valley in 1692, and founded the Mission San Xavier del Bac in 1700 about 7 mi (11 km) upstream from the site of the settlement of Tucson.

A separate Convento settlement was founded downstream along the Santa Cruz River, near the base of what is now "A" mountain.

Hugo O'Conor, the founding father of the city of Tucson, Arizona authorized the construction of a military fort in that location, Presidio San Agustín del Tucsón, on August 20, 1775 (near the present downtown Pima County Courthouse).

During the Spanish period of the presidio, attacks such as the Second Battle of Tucson were repeatedly mounted by Apaches.

Tucson is the second-largest populated city in Arizona behind Phoenix, both of which anchor the Arizona Sun Corridor.

The city is located 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U. south of the city, and South Tucson in an enclave south of downtown.The Spanish name of the city, Tucsón Tucson was probably first visited by Paleo-Indians, known to have been in southern Arizona about 12,000 years ago.Recent archaeological excavations near the Santa Cruz River have located a village site dating from 2100 BC.The floodplain of the Santa Cruz River was extensively farmed during the Early Agricultural Period, circa 1200 BC to AD 150.These people constructed irrigation canals and grew corn, beans, and other crops while gathering wild plants and hunting. pic.twitter.com/fv Dk GZrvaq "That's what good teams do: When the other team scores, to come right back in and answer." -- Daniel Descalso, whose 2-run homer answered the #Reds early run and helped the #Dbacks to victory.