Belgium hands Rwanda to the majority it had spent decades ranking below

The approach to independence in Rwanda was dominated by the split between Tutsi and Hutu, which German and then Belgian administrators had hardened out of older and looser social categories into a fixed racial hierarchy with identity cards to match. In 1959 a Hutu rising against the Tutsi monarchy killed a great many people, and the Belgians restored order only to begin managing a transfer of power to the majority they had spent decades governing through its rivals. Parmehutu, the main Hutu party, swept the local elections of 1960. The monarchy was abolished the following year, and Parmehutu took the country to independence in 1962. Ethnic violence did not stop. The fear that the Tutsi were about to take power back was the trigger for the massacre in 1994 of Tutsi and of the Hutu thought to be friendly to them. In Burundi next door the Tutsi held power from independence until 1993. The categories were an administrative convenience. They became the lines along which two countries tore.

On 28 July 1958 three officers dismissed from the army and driven into exile, Captain Alix Pasquet and Lieutenants Philippe Dominique and Henry Perpignan, attacked in Port-au-Prince. The next day a militia answerable to Francois Duvalier alone was constituted. It took over from the hooded squads the regime had already been using to silence opponents. Recruited from civilians of the poor classes, it became the body known officially as the Volunteers of National Security and popularly as the tontons macoutes. The American doctrine of national security, current in those Cold War years, served the same regime twice, first as an argument for military aid from Washington and then as cover for an order of terror. The army was purged, weakened and broken in. Its weapons came under the direct control of the president. It had to live alongside a second armed body that existed to limit its privileges and to make any move against the regime unworkable.

In January 1965 Diederich met Greene at the airport in Santo Domingo and set out before dawn with the exiled priest Jean-Claude Bajeux in a chartreuse Volkswagen Beetle to drive the length of the Dominican side of the border. Their cover was that they were checking Dominican jails for missing Haitians. Bajeux was six months from the disappearance of his own family. Diederich's purpose was to get Greene close enough to Haiti to write about it, since Greene could not return. Greene later wrote in the American edition of his novel that the best he could do in January 1965 was to make that trip along the border in the company of two exiles and pass along the edge of a country they loved. The final chapter of the book, in which the guerrillas cross into the Dominican Republic, comes directly out of those three days.

Independence across Africa and the civil rights movement in the United States produced, from the late 1950s, a large expansion of scholarly work on the African past. Historians, linguists and archaeologists filled in centuries that university syllabuses had treated as empty, and African history became a subject many universities offer. Offering is a different thing from requiring. In world history courses the African material tends to sit in a sidebar or in a chapter that gets dropped when the term runs short, few history students take an African course at all, and the courses that exist give most of their attention to the last two or three centuries while the ancient periods stay thin. I keep this on a Haitian timeline because the same arithmetic applies to us. Haiti is available to be studied and almost never required, so a person can finish a history degree in the country that bought Louisiana from Napoleon without being told why Napoleon was in a hurry to sell it.