In 2026, the United States celebrates the 250th anniversary of the Declaration of Independence, our nation's semiquincentennial. Additionally, Colorado celebrates the 150th anniversary of our entrance into the Union, our state's sesquicentennial. It's a unique time in history to live in Colorado, as our Centennial state observes both anniversaries--the only state to celebrate a sesquisemiquincentennial! Big words for big twin milestones!
2026 also happens to be Arapahoe Libraries' 60th Anniversary!
Free Library Events
Celebrating America and Colorado
Online event
Unconventional Women of the West with the Legendary Ladies
Colorado 150: Celebrate the Centennial State
Sunday, August 30, 2026
5:30pm–8:30pm
Celebrate America Through Food
As American as Apple Pie: Norman Rockwell
Thursday, July 23, 2026
6:30pm–7:30pm
Online event
America's 49th State: Alaska's Polar Bears
Wednesday, July 29, 2026
2:00pm–3:00pm
Online event
Community Events
Be sure to plan time with family and friends to attend some of the many events celebrating America 250-Colorado 150, opens a new window throughout the state in 2026.
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