The Peabody Essex Museum's collection of African art includes approximately 3,600 objects as of 2014. The acquisition of these works began in the early 19th century, as members of the East India Marine Society collected objects from West and sub-Saharan Africa. These objects include ceremonial masks, pottery, woven baskets, and a significant collection of Ethiopian art—particularly Christian icons and metalwork, many of which are based in the traditions of Byzantine art. In 1812, Salem became the headquarters of the American Board of Commissioners for Foreign Missions, which went on to establish missions throughout the continent. These missions facilitated trade, particularly with the Zulu in South Africa, and contributed significantly to the growth of the collection.