00:00Medieval cities weren't always cesspools.
00:03Textbooks hide this surprising truth.
00:06Siena, Italy had clean water systems in the 1300s.
00:10Underground tunnels brought fresh water.
00:13Fez, Morocco built advanced sewers by the 1200s.
00:16Waste flowed away through clever channels.
00:19These ancient cities proved incredible engineering skills.
00:22The myth of universal filth is shattered.
00:24Discover more forgotten clean cities at the link in bio for truly mind-blowing history.
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