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America250 Capsule Holds State Secrets
15 Jun
Summary
- A 900-pound time capsule was sealed for 250 years.
- Capsule designed to be watertight for burial 10 feet deep.
- Contents include AI predictions and a whale bone.

The America250 commission's time capsule, created by a mandate from a 2016 law, has been sealed in Philadelphia. This 900-pound cylinder is set to be buried on July 4, 2026, and exhumed in 2276, marking 250 years since American independence. The capsule's design prioritizes keeping water out, featuring a stainless steel cylinder shape and a unique sealing mechanism to ensure an airtight and watertight closure.
Safely buried 10 feet below ground, the capsule is protected from environmental fluctuations. Its contents reflect a wide array of American contributions, including submissions from all 50 states, U.S. territories, and federal branches. Items range from historical documents and AI predictions to unique artifacts like a whale bone and a diamond, showcasing the nation's diversity and creativity.
This endeavor follows historical precedents, including a "Century Safe" opened in 1976 and another capsule set to be opened in 2076. The National Park Service is ensuring the America250 capsule's discovery in 2276 through succession plans and a capstone marker, embodying resilience and hope for the future.