did-you-kno:

In 2016, Hurricane Matthew uncovered
more than a dozen Civil War
cannonballs on a beach in South
Carolina. Even though the eroded
artillery looked harmless after 150
years buried in sand, they were still
prone to detonating and able to send
shrapnel more than ΒΌ mile), so the
US Air Force promptly blew them up. Source

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