It is the 4th busiest port in Europe by metric tonnes of cargo.[citation needed] The port is located on the bank of a former bay named the IJ and the North Sea Canal, with which it is connected to the North Sea. The port was first used in the 13th century and was one of the main ports of the Dutch East India Company in the 17th century. Today, the port of Amsterdam is the second largest port in the Netherlands, the largest being the Port of Rotterdam.