What was the name of the Philadelphia exposition held for the United States’ 150th anniversary in 1926?

The Philadelphia exposition held for the United States’ 150th anniversary in 1926 was the Sesquicentennial Exposition.

Its formal name was the Sesqui-Centennial International Exposition. The world’s fair celebrated the 150th anniversary of the Declaration of Independence and also marked the 50th anniversary of Philadelphia’s 1876 Centennial Exposition.

The exposition opened in South Philadelphia on May 31, 1926, and ran through November. It included exhibits, amusement attractions, international participation, commemorative postage, and special coins. Philadelphia was chosen to host the event because of its central role in the American Revolution and the founding era.

The event is an important predecessor to America250. The United States’ major anniversary celebrations have followed a sequence of centennial milestones: the Centennial Exposition in 1876, the Sesquicentennial Exposition in 1926, the Bicentennial in 1976, and the Semiquincentennial in 2026.