Colorado is pairing America250 with its own 150th-anniversary celebration.
Colorado joined the national semiquincentennial in 2026 while also observing 150 years since entering the Union. That combination created the “America 250–Colorado 150” commemoration.
The Colorado General Assembly established the state commission through legislation signed by Governor Jared Polis on May 26, 2022. History Colorado hosts the commission and coordinates the state’s programs.
Colorado’s state anniversary is a sesquicentennial, meaning a 150th anniversary. It is distinct from America250, which commemorates 250 years since the Declaration of Independence and is observed nationwide.