America’s Time Capsule is scheduled to be reopened in 2276.
The capsule was created as part of America250, the national commemoration of the 250th anniversary of the Declaration of Independence. It was buried at Independence National Historical Park in Philadelphia on July 4, 2026, then designated for reopening 250 years later.
The year 2276 is significant because it will mark the 500th anniversary of the Declaration’s adoption. That future milestone would be the United States’ semimillennium, although the capsule’s planned opening is the concrete date associated with the America250 project.
The timeline can cause confusion because 2276 is not 250 years after the country’s founding year alone; it is 250 years after the 2026 anniversary. The capsule therefore bridges America’s 250th anniversary in 2026 and its 500th anniversary in 2276.