The waters of the River Seine have always been the heart and soul of Paris, dating back to the days when the Parisii tribe first established a fishing village on the island now known as Ile de la Cité between 250 and 200 B.C. Prized for its position as a major inland port, Paris has been invaded, occupied, and conquered by its share of foreigners over the course of two millennia, many of whom arrived by this waterway. The last major invasion by water occurred between 885 and 886 A.D., when 30,000 Norman pirates in 700 ships sailed up the Seine, only to find it valiantly defended by Comte Eudes.E ver since the days of the Roman Empire, when Paris prospered through extensive river trading and expanded to the Left Bank, the Seine has been a great commercial artery, linked by canals to the Loire, Rhine, and Rhône rivers. Officially established as the capital city by Clovis, king of the Franks (who defeated the Roman governor of Gaul and established the Merovingian dynasty), Paris evolved into a cultural center and a showcase of glorious architecture.