This new online platform allows visitors to learn about the specifications, location and provenance of more than 5,000 African artifacts, including maps, high-resolution images, and the title of the works in English and Edo languages. The works The Benin Bronzes are more naturalistic than most African art of the period. The bronze surfaces are designed to highlight contrasts between light and metal. The features of many of the heads are exaggerated from natural proportions, with large ears, noses, and lips, which are shaped with great care. The most notable aspect of the works is the high level of metal working skill at lost-wax casting. The descendants of these artisans still revere Igue-Igha, as the person who introduced the art of casting to the Kingdom of Benin. Another important aspect of the works is their exclusivity: property was reserved only for certain social classes, reflecting the strict hierarchical structure of society in the Kingdom of Benin. In general, only the king could own objects made of bronze and ivory, however, he could allow high-ranking individuals to use such items, such as hanging masks and cuffs made of bronze and ivory. Coral was also a royal material. Coral neck rings were a symbol of nobility and use was granted specifically by the Oba. Themes The rectangular plaques exist in two formats. In one, the long vertical sides are turned back, creating a small edge that is decorated with an incised guilloché pattern. In the other format, which is much narrower, the turned-back edges are missing and the design of the plaque background ends abruptly, as if cut off. These variations probably reflect the size and shape of the palace pillars and the arrangement of the plaques on them. The plaques are generally about 1/8 inch (3.175 mm) thick. The backgrounds on the front of most of the plaques are incised with foliate patterns bearing one to four leaves, which is referred to as ebe-ame, or the "river leaf" design. The leaves were used in healing rites by priestesses of Olokun, the god of the sea. Some of the reliefs represent important battles of the sixteenth-century wars of expansion; however, the majority depict dignitaries wearing ceremonial dress. Most of the plaques portray static figures, either alone, in pairs, or in small groups arranged hierarchically around a central figure. Many of the figures depicted in the plaques may be identified only through their clothing