Majorca was ruled by the MuslimAlmohads until its conquest byJames I, King of the Crownof Aragon,in 1229. Its greatest importance was as a trading and shipping center for thewestern Mediterraneanand the Maghribi ports, which controlled the gold trade from Mali and West Africa. Once the Majorcan base was established, Catalan merchants and shippers not only gained access to those markets, but also helped develop the maps, ships, and navigational technology which gave Mediterranean shippers access to the Atlantic Ocean.