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  • 2 days ago
Rome engineered artificial harbors like Portus and commanded trade across the Mediterranean. But engineering could not stop erosion. Sediment buried quays. Pollution altered the chemistry of coastal waters. Through marine archaeology and climate science, this film traces the environmental footprint of one of history’s greatest civilizations.

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00:00For the Romans, the Mediterranean was everything—trade route, highway, and heart of the empire.
00:05They called it Mare Nostrum, our sea. For centuries, ships crossed these waters carrying grain,
00:13timber, marble, and metal. But while Rome ruled its surface, something was happening below.
00:20This is the story of how Rome's expansion not only conquered nations, but changed the sea itself.
00:26When Rome first rose to power, the Mediterranean was a patchwork of coasts and islands.
00:31Its waters were clear, its tides slow, and its shores lined with forests.
00:37By the first century BCE, the empire surrounded nearly every edge of it.
00:42From Spain to Egypt, the sea became a Roman lake—a unified system of trade and control.
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Wide Lenz
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Mare Nostrum: Empire, Erosion, and the Fall of a Sea

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