What was the 1976 celebration called that marked the United States’ 200th anniversary before America250?

The 1976 celebration that marked the United States’ 200th anniversary was called the United States Bicentennial.

The Bicentennial commemorated the 200th anniversary of the Declaration of Independence. Events took place nationwide, with parades, exhibitions, concerts, historical programs, and special public projects. Philadelphia, where the declaration was adopted, was one of the major centers of the observance.

The celebration also produced a large amount of commemorative material, including stamps, coins, medals, souvenirs, and redesigned circulating quarters, half dollars, and dollar coins bearing the dual date 1776–1976.

The Bicentennial is a useful comparison for America250, which marks 250 years rather than 200. Both celebrations focus on the independence era, but the later anniversary is known by several names, including the United States Semiquincentennial and America250.