What national anniversary in 1976 was the predecessor to America’s 250th anniversary celebration?

The United States Bicentennial in 1976 was the predecessor to America’s 250th anniversary celebration.

The bicentennial marked 200 years since the Declaration of Independence was adopted in 1776. Its main national observance took place in 1976, although commemorative projects and events began earlier and continued afterward. The milestone became one of the most extensive nationwide celebrations in American history.

The 2026 America250 observance follows the same anniversary arithmetic: 1776 plus 250 years equals 2026. The two celebrations are therefore connected, but they are not the same event. The bicentennial celebrated 200 years, while the semiquincentennial celebrates 250.

The 1976 commemoration produced special postage stamps, coins, public events, and historic preservation projects. Many communities also created local monuments and educational programs, leaving a visible legacy that helped shape later national anniversary planning.