The United States Semiquincentennial, or America's 250th anniversary, takes place in 2026.
The anniversary counts 250 years from the 1776 Declaration of Independence. The term semiquincentennial means a 250th anniversary, combining Latin roots related to half and five hundred.
America250 is the common branding for national programs connected with the semiquincentennial. Events include commemorations, educational projects, exhibitions, and celebrations across the United States.
The anniversary is sometimes confused with the 250th anniversary of the Revolutionary War itself. The war began in 1775 and ended with the 1783 Treaty of Paris, but the national anniversary specifically centers on independence declared in 1776.