The origins of Amsterdam are connected to the event of the dam to the Amstel River known as Amestelle, which means 'watery place', from Aa(m) 'river' + stelle 'internet site in a shoreline', 'river lender'.[36] Within this area, land reclamation started as early as the late 10th century.[37] Amestelle was Situated alongside a aspect arm from the IJ