The article is a demonstration of the application of new methodologies, especially the creation and use of calculations made on relational databases using various types of documents generated in America as well as Atlantic slave trade documents, to identify African ethnicities who arrived America in significant numbers during the four centuries of the Atlantic slave trade: their origins in Africa, what ethnicity designations meant in various languages, how these designations changed and how they were used at various times and places, to what extent they were self-identifications, and where why they were clustered over time and place in America.
Africa; Slavery; Database.