Brief timeline of the history of the state of Arizona
  • Pre-16th century: Native American tribes, including the Hohokam, Ancestral Puebloans, and Navajo, inhabit the region that is now Arizona.

  • 1540: Spanish conquistador Francisco Vázquez de Coronado explores Arizona in search of the legendary Seven Cities of Gold.

  • 1821: Mexico gains independence from Spain, and Arizona becomes part of the Mexican territory.

  • 1848: The Treaty of Guadalupe Hidalgo is signed, ending the Mexican-American War and transferring Arizona to the United States as part of the Mexican Cession.

  • 1863: Arizona becomes a separate territory of the United States, splitting from the larger New Mexico Territory.

  • Late 19th century: Arizona experiences a mining boom, particularly in copper and silver, attracting settlers and immigrants to the region.

  • 1912: Arizona is admitted as the 48th state of the United States on February 14.

  • 1920s-1930s: The construction of dams, including the Hoover Dam and Glen Canyon Dam, brings hydroelectric power and water resources to Arizona, contributing to the state's growth and development.

  • 1941-1945: During World War II, Arizona becomes a crucial location for military training and the internment of Japanese Americans at camps such as the Gila River War Relocation Center and the Poston War Relocation Center.

  • 1950s-1960s: Arizona experiences significant population growth and urban development, particularly in cities like Phoenix and Tucson.

  • 1968: The Grand Canyon National Park is designated a UNESCO World Heritage Site, recognizing its natural and cultural significance.

  • Late 20th century: Arizona becomes a popular retirement destination and a hub for tourism, outdoor recreation, and the aerospace industry.

  • Present: Arizona is known for its diverse landscapes, including the Grand Canyon, Sonoran Desert, and Monument Valley. The state's economy encompasses sectors such as tourism, agriculture, mining, manufacturing, and technology.

This timeline offers a glimpse into the rich history of Arizona, from its indigenous roots and territorial days to statehood and its present-day contributions to various industries and natural attractions.