Which earlier national anniversary did America250 follow by exactly 50 years?

America250 follows the 1976 United States Bicentennial by exactly 50 years.

The Bicentennial marked 200 years since the Declaration of Independence and was celebrated nationwide during 1976. Events included parades, exhibitions, performances, public ceremonies, and commemorative objects such as special coins and postage stamps.

The 1976 anniversary also produced distinctive circulating coin designs. The quarter, half dollar, and dollar carried the dual date 1776–1976, linking the founding year with the anniversary year. The quarter featured a colonial drummer and a torch surrounded by 13 stars.

America250 uses the same starting year, 1776, but marks 250 years rather than 200. The comparison is useful because both celebrations emphasize the Declaration and the continuing history of the United States.