On what date will the United States observe its 250th anniversary in 2026?

The United States will observe its 250th anniversary on July 4, 2026.

The date marks the 250th anniversary of the adoption of the Declaration of Independence in 1776. The anniversary is commonly called the semiquincentennial, a term formed from Latin roots meaning 250 years. The America250 initiative coordinates national celebrations and educational programs connected with the milestone.

July 4 is the anniversary date, although the Declaration was debated and approved over several days in 1776. The Continental Congress formally adopted the document on July 4, while the famous signing ceremony took place later. This distinction explains why Independence Day is celebrated on July 4 rather than on the date when every delegate signed.

The 2026 observance also falls on a Saturday, making it a major national holiday weekend. America250 events connect the anniversary to the nation’s founding documents, revolutionary history, communities, and continuing civic story.