Congo River mentioned in 1535. Abraham Ortelius in his world map of 1564 labeled as "Manicongo" the city at the mouth of the river. The tribal names in "Kongo" possibly derive from a word for a public gathering or tribal assembly. The modern name of the Kongo people or "Bakongo" was introduced in the early 20th century. The name "Zaire" is from a Portuguese adaptation of a Kikongo word, ("river"), a truncation of ("river swallowing rivers"). The river was known as "Zaire" during the 16th and 17th centuries; "Congo" seems to have replaced "Zaire" gradually in English usage during the 18th century,
Zaire 74 performers included Celia Cruz and the Fania All-Stars. The concert was promoted by Don King, as a part of the build-up to the Ali-Foreman fight. At the time of the event, Zaire was run by Mobutu, a dictator who became notorious for corruption, nepotism and human rights violations. Mobutu agreed to host the festival and to help cover its costs. A documentary about the Zaire 74 festival, entitled "Soul Power", was released in 2009. The film was directed by Jeffrey Levy-Hinte, who served as the editor on the 1996 documentary "When We Were Kings", which also contains selections of concert