America250 marks the United States semiquincentennial in 2026.
A semiquincentennial is a 250th anniversary. America250 commemorates the 250th anniversary of the Second Continental Congress adopting the Declaration of Independence on July 4, 1776. Counting 250 years from 1776 leads to 2026.
The anniversary is also described as the United States Semiquincentennial. The term combines “semi,” meaning half, with “quincentennial,” meaning a 500th anniversary. It is therefore distinct from the 1976 bicentennial, which marked 200 years of American independence.
America250 is the name used by the United States Semiquincentennial Commission, a nonpartisan organization established by Congress. Celebrations include historical, civic, cultural, and educational programs across the United States.