Far more Long lasting and of much more economic affect have been canals like the Naviglio Grande developed concerning 1127 and 1257 to attach Milan Along with the river Ticino. The Naviglio Grande is The key from the lombard "navigli"[21] as well as the oldest performing canal in Europe. https://webnowmedia.com/story5627987/canal-infantil-no-further-a-mystery