The United States Semiquincentennial was marked on July 4, 2026, the 250th anniversary of the Declaration of Independence.
The date follows the traditional American Independence Day calendar. On July 4, 1776, the Second Continental Congress approved the Declaration of Independence, which announced and explained the colonies' separation from Great Britain.
The anniversary is commonly called America250 and is also known as the United States Semiquincentennial. The term describes a 250-year anniversary, although several alternative names have appeared in historical and promotional usage.
July 2 is an important neighboring date: Congress approved the Lee Resolution declaring independence on that day in 1776. Independence Day, however, commemorates the Declaration's July 4 adoption rather than the earlier resolution.