S. 3705: Semiquincentennial Congressional Time Capsule Act

The Semiquincentennial Congressional Time Capsule Act (S3705) directs Congress to seal away physical mementos and a joint letter from current congressional leaders, to be opened on July 4th, 2276—exactly 250 years from the country's founding anniversary. This effort aims to mark the 250th birthday of the U.S. by giving future generations a first-hand look at the values and voices of Congress today.

The bill assigns the Architect of the Capitol with creating and burying the time capsule in the Capitol Visitor Center. The capsule's contents and design are tightly controlled: Only items agreed to by top Congressional leaders, made largely from materials that won’t degrade, will be included. In addition, the location, size, and logistical details are spelled out to line up with major national celebrations.

This is about more than burying keepsakes—it’s a statement of continuity and faith in America's future. The process encourages bipartisan cooperation and thoughtfulness about how Congress wants to be remembered. The law even coordinates with a separate time capsule to be buried in Philadelphia, tying national significance to the project.

Cost and fanfare around the capsule should be relatively modest, but the symbolism is high. As Americans debate what to preserve and teach, this act invites leaders to put their best face forward for those yet to come.