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Zebulon Pike come to the region and discover a peak that is eventually named for him.
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Gold was first discovered.
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The first Colorado newspaper, "The Rocky Mountain News" was started.
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Sand Creek Massacre National Historic Site700 Colorado Territory militia attacked and destroyed a village of friendly Cheyenne and Arapaho encamped in southeastern Colorado.
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Colorado becomes the 38th state.
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Colorado adopts prohibition.
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Denver Broncos Professional football team is established.
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Oklahoma City bombing suspects are tried in Denver.
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Hi Meadow fire ravaged 10,800 acres and destroyed 51 homes; Bobcat fire burned 10,600 acres and destroyed 22 structures; Bircher fire raged across 23,000 acres in Mesa Verde National Park