The America 250 Time Capsule: How Library Scientists Guided the Longevity Inside

Library of Congress · September 4, 2026

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Introduction and presenter background

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Presenter (Preservation Research and Testing Division, Library of Congress) introduced himself and the division's role, explaining the lab provides scientific guidance to preserve Library of Congress materials and previewed examples of the team's work.

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A Library of Congress preservation scientist described the technical challenges of preserving the America250 time capsule and answered audience questions about materials, electronics, DNA encoding, and why the capsule was buried at Independence Hall in Philadelphia.

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