The first Europeans to explore the coast of Maine sailed under the command of the Portuguese explorer Estêvão Gomes, in service of the Spanish Empire, in 1525. They mapped the coastline (including the Penobscot River) but did not settle. The first European settlement in the area was made on St. Croix Island in 1604 by a French party that included Samuel de Champlain. The French named the area Acadia. French and English settlers would contest central Maine until the 1750s (when the French were defeated in the French and Indian War). The French developed and maintained strong relations with the local Indian tribes through Catholic missionaries.