Artificial waterways engineered to carry vessels across or around a land barrier, from early sea-level canals through the lock systems that lift ships between water levels. Belongs here: any named canal or artificial ship channel considered as a built work and its engineering and operating history. Does not belong here: the natural strait, river or sea a canal connects, which belongs to Geography, or the vessels that use a canal, tracked as vehicle entities.
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1. Wikipedia: Canal
WikipediaCanal, oldest known canalsQuote, Canal, oldest known canals
The oldest known canals were irrigation canals, built in Mesopotamia c. 4000 BC, in what is now Iraq.
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