In the Middle Ages, the Crusades passed by Åland. At that time, the island state was right in the middle of the Scandinavian artery, a sailing channel that these days is called the Valdemar Fairway. The motorway of the times was mentioned in writing in Latin in the 1200s. The fairway runs from Arholma to Åland and the Finnish archipelago. A number of traces of medieval times have been preserved in Åland.