that encompasses much of the Rocky Mountains
as well as the northeastern portion of the Colorado Plateau
and the western edge of the Great Plains
. Colorado is part of the Western United States
and the Mountain States
The state was named for the Colorado River
, which early Spanish
explorers named the Río Colorado for the red colored silt the river carried from the mountains. On August 1, 1876, U.S. President Ulysses S. Grant
signed a proclamation admitting Colorado as the 38th state.
1806 Pike expedition: Lieutenant Zebulon Pike sees a distant mountain peak while near the Colorado foothills of the Rocky Mountains (it is later named Pikes Peak).
1850 The Compromise of 1850 transfers a third of Texas's claimed territory (now parts of Colorado, Kansas, New Mexico, Oklahoma, and Wyoming) to federal control in return for the U.S. federal government assuming $10 million of Texas's pre-annexation debt.
1858 Denver, Colorado is founded.
1861 Colorado is organized as a United States territory.
1876 Colorado is admitted as the 38th U.S. state.
1889 In Colorado, Nicholas Creede strikes it rich in silver during the last great silver boom of the American Old West.
1893 Women in the U.S. state of Colorado are granted the right to vote.
1894 Governor Davis H. Waite orders the Colorado state militia to protect and support the miners engaged in the Cripple Creek miners' strike.
1914 Forty-five men, women, and children die in the Ludlow Massacre during a Colorado coal-miner's strike.
1954 President Dwight D. Eisenhower authorizes the creation of the United States Air Force Academy in Colorado.