The following timeline traces the territorial evolution of the U.S. State of Arizona.

Timeline

Historical territorial claims of Spain in the present State of Arizona:

• Nueva Vizcaya, 1562–1821

• Santa Fé de Nuevo Méjico, 1598–1821

Sonora y Sinaloa, 1732–1821

• Treaty of Córdoba of 1821

Historical territorial claims of Mexico in the present State of Arizona:

• Santa Fé de Nuevo México, 1821–1848

• Sonora y Sinaloa (Estado de Occidente), 1824–1830

Sonora since 1830

• Treaty of Guadalupe Hidalgo of 1848

• Gadsden Purchase of 1853

Historical political divisions of the United States in the present State of Arizona:

Unorganized territory created by the Treaty of Guadalupe Hidalgo, 1848–1850

• Compromise of 1850

• State of Deseret (extralegal), 1849–1850

Territory of New Mexico, 1850–1912

• Gadsden Purchase of 1853

American Civil War, 1861–1865

• Arizona Territory (CSA), 1861–1865

Territory of Arizona, 1863–1912

• North-western corner of the Arizona Territory is transferred to the State of Nevada, 1867

• State of Arizona since February 14, 1912

• Mexican Boundary Exchanges: In 1927 under the Banco Convention of 1905, the U.S. acquired two bancos from Mexico at the Colorado River border with Arizona. Farmers Banco, covering , a part of the Cocopah Indian Reservation at , was ceded to the U.S. with controversy. Fain Banco () at also became U.S. soil.

See also

• History of Arizona

• Territorial evolution of the United States

• Territorial evolution of California

• List of territorial claims and designations in Colorado

• Territorial evolution of Nevada

• Territorial evolution of New Mexico

• Territorial evolution of Utah

References

External links