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25 May 2001
32-year-old Erik Weihenmayer from Boulder, Colorado, became the first blind person to reach the summit of Mount Everest.
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20 Apr 1999
15 die in the Columbine High School massacre.
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26 Dec 1996
JonBenét Ramsey was found dead.
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13 Jul 1993
Mexican grill chain Chipotle opened its first restaurant.
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31 Dec 1977
Ted Bundy escaped from jail.
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1 Nov 1955
A bomb hidden in checked luggage of United Airlines Flight 629 exploded over Longmont, Colorado killing all 44 people on board.
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10 Sep 1945
Mike the Headless Chicken lost his head.
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5 Mar 1935
Colorado became the birthplace of the cheeseburger.
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7 Aug 1904
The Eden train wreck happened when a trail derailed from Denver, Colorado, to St Louis, Missouri.
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7 Nov 1893
Colorado became the second US state to give women the right to vote.
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1 Aug 1876
Colorado became the 38th state to join the United States of America.