Colorado pairs America250 with its own 150th-anniversary celebration in the America 250–Colorado 150 program.
The dual commemoration marks the United States semiquincentennial in 2026 and Colorado’s sesquicentennial, or 150th anniversary of statehood. Colorado joined the Union on August 1, 1876, making its statehood anniversary fall in the same year as America’s 250th anniversary.
The Colorado General Assembly established the commission through legislation signed by Governor Jared Polis on May 26, 2022. History Colorado hosts the commission and coordinates related programs, exhibitions, and educational activities.
The two celebrations are related but commemorate different milestones: America250 honors the nation’s 1776 independence, while Colorado 150 marks the state’s admission to the Union in 1876. The combined initiative began in July 2025 and is scheduled to continue through December 31, 2026.