To celebrate the 250th anniversary of the United States' founding, a 408‑kilogram time capsule has been assembled, containing items representing contemporary America, and is planned to be buried in Philadelphia on July 4.
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美国之音中文网
2026-09-23 16:54 · 美国之音中文网 发布了新视频：史密森尼博物馆以250件馆藏庆祝美国建国250周年并讲述国家历史
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408‑kilogram time capsule plan to be buried in Philadelphia
2026.07.04 · Verified
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