Cameroon Chronology One of the great trading emporia of West Africa, Cameroon was divided between the French and British in 1919, after 30 years of German rule. * 1955 Revolt; French kill 10,000. * 1960 French sector independent. * 1961 British southern sector votes to join Cameroon; northern joins Nigeria. Federal system set up. Lasts 11 years – centralized 1972. * 1966 One-party state. * 1982 Ahidjo dies. Paul Biya succeeds as president. * 1983–1984 Coup attempts. Heavy casualties; 50 plotters executed. * 1990 Demonstrations and strikes; declaration of multiparty state. * 1991 Annexes nine Nigerian villages. * 1992 Multiparty elections.