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Columbus day was an official state holiday in Colorado since 1906 and an official federal holiday in 1937, but have been celebrated unofficially since the late 18th century.

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βˆ™ 14y ago
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βˆ™ 15y ago

It became a federal legal holiday in 1971.

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βˆ™ 13y ago

it's been a holiday since 1961

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βˆ™ 14y ago

OCT 10, 2011

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Q: When did Columbus Day become a holiday?
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