Boyer is born in Port-au-Prince in the year 1776

Jean Pierre Boyer was born in the colonial capital in the year the United States declared independence, a coincidence Baur uses to frame a life spent between the Atlantic revolutions. He was in France as a young man, returned home in time for the English invasion of 1793, and later fled again toward France, a voyage interrupted when his ship was taken by Americans during the undeclared naval war between the United States and the French Republic at the end of the decade. Released once the crisis passed, he lived in Paris until the autumn of 1801. The article treats this itinerary as the making of a politician who understood European powers from the inside, and who returned to a country where Dessalines proclaimed independence at the start of 1804 and was killed by an assassin's bullet two years later.

From 1775 until the rising of 1791, ships landed 301,320 people from Africa in Saint Domingue. West Central Africa and Saint Helena accounted for 143,181 of them, about forty seven and a half per cent, far ahead of the Bight of Benin with 56,198. Sixteen years is short enough that a large share of the people alive in the colony in 1791 had come through that trade and had been born on the other side of the ocean. No other French Caribbean colony looked like this. Guadeloupe, Martinique and French Guiana all saw their West Central African share fall in the same years. Saint Domingue was the only French colony where the number from that region rose and stayed the largest group right up to the revolt, and it was the only French colony where the enslaved population rose in force and won.

Between 1750 and 1791 the slave owners of Saint-Domingue lived in fear. A great many of them died of poisoning, and the colonial police could make nothing of it. Selling or preparing suspicious drugs was banned, African magic was banned, and neither prohibition touched the problem. Out of the maroon camps came leaders with reputations for power who announced that the whites would be exterminated and the enslaved set free. Some of them were politicians in every practical sense, working out how independence might actually be won. Their means were the ones available: knowledge of poisonous plants, prepared potions, and charms called garde-corps, body guards, given to rebellious slaves and said to make them proof against weapons and free of any fear of white people. What frightened the planters was that the two things came together. The pharmacology worked and the political programme was serious, and the colony had no answer to either.

Between 1775 and 1791 Guadeloupe received 2,271 people from Africa. Only 287 of them, thirteen per cent, came from West Central Africa, which left that region fourth behind the Bight of Biafra, the category the database calls Other Africa, and the Bight of Benin. A quarter century earlier West Central Africa had been the largest supplier to Guadeloupe. Martinique shows the same fall, from twenty eight per cent in the years to 1775 down to twenty per cent afterwards, on small numbers. French Guiana fell furthest, to 220 people out of 2,722. In the same sixteen years Saint Domingue took 143,181 from that one region. The contrast is the whole point of the comparison. Every French Caribbean colony had enslaved people and none of the others produced a revolution, and Saint Domingue was the only one whose arrivals were overwhelmingly and increasingly from a single African region.