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The Ute Indians inhabited the southern Rocky Mountains. This makes them the oldest native residence of Colorado
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Thomas Jefferson signs the Louisianna Purchase and the U.S. acquires an extremely large area of land including present-day eastern Colorado.
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Bent's Fort, one of the most important trading posts in the west is built in present-day La Junta, Colorado.
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The Federal government purchases all of Colorado territory and Colorado's present-day boundaries are set.
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The first long distance phone call is made from Denver to New York City and the first airplane flight in Denver.
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The U.S. is involved in WWII from December 1941 until 1945.
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From 1980-1990 major technological growths and advancements are made in Colorado industries.