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This 7000-year-old wall was the earliest known defense against rising seas. It failed

About 7000 years ago, seas were rising all over the world. Ice age glaciers were melting, and the ocean crept up shorelines and toward people’s homes on every inhabited continent. Now, archaeologists have discovered the earliest known defense against those rising seas: a 7000-year-old sea wall built to protect a farming village from worsening storm surges and encroaching saltwater from the Mediterranean Sea.

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