Which Philadelphia event marked the 150th anniversary of U.S. independence in 1926?

The Philadelphia event that marked the 150th anniversary of U.S. independence in 1926 was the Sesquicentennial Exposition.

Also called the Sesqui-Centennial International Exposition, it was a world's fair held in South Philadelphia. The exposition commemorated the 150th anniversary of the Declaration of Independence and the 50th anniversary of Philadelphia's 1876 Centennial Exposition.

The fair opened on May 31, 1926, and continued through November. Its grounds included the newly built Sesqui-Centennial Stadium, later known as Philadelphia Municipal Stadium and John F. Kennedy Stadium. A spectacular 80-foot Liberty Bell replica illuminated by 26,000 light bulbs greeted visitors.

The exposition is sometimes confused with the Centennial Exposition, which celebrated the 100th anniversary in 1876, or the 1976 Bicentennial. The 1926 fair also featured sporting events, amusement rides, international exhibits, and displays by a number of foreign nations, but it ultimately struggled financially and entered receivership in 1927.