when did colorado become a state
Colorado Became a State August 1, 1876. The 1846-1848 war between Mexico and the United States ended in the Treaty of Guadalupe Hidalgo (1848).he impetus for the organization of the Colorado territory was the discovery of gold. On 28 February 1861, the U.S. government organized the Territory of Colorado. (Colorado City and Golden served as the territory's capital, before Denver was declared the capital in 1867.). Colorado became a state on 1 August 1876.