The history of Tucson stretches back centuries, long before the arrival of Europeans. The Santa Cruz River valley was home to Indigenous peoples, such as the Hohokam, who created complex irrigation systems for agriculture here. The city's name itself comes from the phrase "Cuk Ṣon" in the language of the Tohono O'odham people, which translates as "at the base of the black hill".
The official founding date of the modern city is considered to be 20 August 1775. On this day, by order of Hugo O'Conor, an Irish nobleman in Spanish service, the military fort Presidio San Agustín del Tucsón was established. This outpost became the nucleus of the future city and served to protect Spanish missions and settlements in the region. In 1821, following Mexico's declaration of independence, Tucson became part of Mexico, and in 1854, as a result of the Gadsden Purchase, the territory came under the jurisdiction of the USA.
A key factor in Tucson's development was its strategic geographical location. Situated by the Santa Cruz River, it provided access to water in the arid Sonoran Desert, making this spot attractive for settlements for millennia. A real breakthrough in development occurred with the arrival of the Southern Pacific Railroad in 1880. This event significantly accelerated economic growth, strengthened trade ties, and facilitated the city's integration into the national economy.
From the very beginning, Tucson was a melting pot where the cultures of Native Americans, Spaniards, Mexicans, and later, American settlers mixed. This multiculturalism is reflected in the city's architecture, cuisine, and traditions. The early economy was closely tied to its status as a military post and an important station on the mail route, as well as the development of mining and cattle ranching in the surrounding areas.