History


October 9, 2025

Local Historians Unveil the Oldest Known Photo Taken in Colorado

A team of local historians have uncovered what they believe to the be the oldest surviving photograph of Colorado. The photo is a daguerreotype taken in 1853, and predates the 1876 formation of Colorado as a state by over 20 years. This discovery is all thanks to History Colorado, whose historians decided to find the oldest photograph of Colorado as a way to celebrate the state’s 150th birthday next year.

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October 4, 2025

Searchable “Eclipse Atlas” Archive Traces Solar Phenomena Through the Centuries

When was the last time you remember watching a solar or lunar eclipse? The Great North American Eclipse of April 8, 2024, was the last time this celestial event occurred, and it was visible across parts of the United States, Mexico, and Canada. A partial eclipse happened on September 21, 2025, in parts of Australia, New Zealand, the Pacific Islands, and Antarctica.

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