David M. Gordon
In his influential book, Kingdoms of the Savanna (1966), Jan Vansina described the rise of the kingdoms of the south-central African interior from the 15th century. These include the Luba (the mulopwe titleholders), Lunda (the nuclear Lunda, also termed Rund, of the mwant yav titleholders), Lunda-Ndembu, Chokwe, Pende, Luvale, Luluwa, Kanyok, Luba-Kasai, Kuba, Eastern Lunda, Yeke, and the Bemba. New analyses of oral traditions as well as the study of art, archaeology, ethnographic fieldwork, linguistics, and documentary sources haverevised understandings of these polities and added details. Historians have considered the context of the production of primary sources, in particular art and oral traditions, which were created during a transformative 19th century, when trade and violence contributed to the centralization of power for some polities and the disintegration of others. With subjects questioning the power of sovereigns, art, oral traditions, and oral praises projected royal genealogies and the qualities of kingship into a vague antiquity. The study of historical linguistics has also provided inroads into understanding the dissemination of political institutions and titles along with tentative accounts of their historical depth. Ethnographic fieldwork has further elaborated on the functioning of political systems and religious ideas. These diverse primary sources complicate the historiography of central African kingdoms; they also indicate the spread of alternative political and religious affiliations during the 18th and 19th centuries, in particular Luba fertility associations and Lunda fictive kin alliances.