Which earlier U.S. anniversary celebration took place in 1976, exactly 50 years before America250?

The United States Bicentennial took place in 1976, exactly 50 years before America250.

The Bicentennial marked 200 years since the Declaration of Independence and produced a huge range of celebrations, exhibitions, parades, educational programs, and commemorative objects. Philadelphia, where the Continental Congress met in 1776, was a major center of Bicentennial activity.

The comparison helps place America250 on the historical timeline. A centennial is a 100th anniversary, a sesquicentennial is a 150th, a bicentennial is a 200th, and a semiquincentennial is a 250th. The 1976 and 2026 celebrations are therefore related but not interchangeable.

Many Americans recognize the Bicentennial through the distinctive “1776–1976” dates used on coins, stamps, signs, and souvenirs. The 2026 commemoration similarly uses the dual dates “1776–2026” for anniversary-related designs. Both observances connect modern celebrations to the Declaration, while reflecting the technology, culture, and public priorities of their own eras.