Historically, the period from 1500 BC–1 AD saw the Western Asian, Mediterranean, Chinese and Indian societies develop major networks for trade, such as the silk road. Europe's early trading routes included the amber road, which served as a network for long distance trade. Maritime trade along the spice route became prominent during the Middle Ages; nations tried to control this influential route. During the Middle Ages organizations such as the Hanseatic League, aimed at protecting interests of the merchants and trade, also became increasingly important.