Colorado Day

The state that became a state on August 1, 1876, just in time for the centennial.

Colorado Day on August 1 marks the anniversary of Colorado's admission to the Union on August 1, 1876, just 28 days after the nation's 100th birthday. Colorado became the 38th state, earning the nickname 'The Centennial State.' The state is home to the Rocky Mountains, 53 peaks above 14,000 feet, an