Spanish explorer Alonso de Salazar was the first European to see the islands in 1526, but they remained virtually unvisited by Europeans until the arrival of British Captain John Charles Marshall in 1788. The islands were named after him in the British maps. However, they were claimed under the Spanish sovereignty as part of the Spanish Oceania. In 1874 the Spanish sovereignty was recognized by the international community. They were sold to Germany in 1884 through papal mediation.A German trading company settled on the islands in 1885. They became part of the protectorate of German New Guinea some years later.