Wanderlust World Wanderlust World European settlement in Arizona began with Spanish explorers in the 16th century. Before their arrival, there is no evidence of permanent European communities in the region.
Spanish missionaries and soldiers established presidios (forts) and missions, such as Mission San Xavier del Bac near present-day Tucson, aiming to convert Indigenous peoples and secure Spain’s northern frontier. Later, Mexican and American periods brought miners, ranchers, and farmers, especially after the 1848 Treaty of Guadalupe Hidalgo and the 1854 Gadsden Purchase transferred the territory to the United States.
Key drivers for settlement included mineral discoveries (copper, silver, gold), agricultural potential along river valleys, and strategic military outposts. The railroad’s arrival in the 1880s accelerated growth, turning towns like Tucson and Phoenix into regional hubs.
Thus, European—and later Anglo-American—settlement in Arizona was driven by exploration, missionary work, resource extraction, and geopolitical shifts.