The Fascinating World of Time Capsules

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The Massachusetts State House Time Capsule

The United States’ oldest known time capsule was the work of none other than Samuel Adams and Paul Revere. In late 2014, repairmen fixing a water leak at the Massachusetts State House uncovered a brass box that the two former Sons of Liberty had placed in a cornerstone to mark the building’s construction back in 1795.

When it was finally unsealed in 2015, however, the Massachusetts State House Time Capsule was found to contain a trove of preserved artifacts including newspapers, coins dating back to the 1600s, a page from the Massachusetts Colony Records and a copper medal with an image of “General of the American Army” George Washington. Most exciting of all was a silver plaque—believed to be engraved by Paul Revere himself.