Guacanagaric gave Columbus the ground for his first fort

Marien held the northwestern quarter of Hispaniola, one of five Taino chiefdoms on the island. Its cacique was Guacanagaric. He met Columbus in December 1492 and became the first ruler on the island to treat with the Spanish as an ally, supplying the ground and the labour for La Navidad, the settlement the newcomers put up near what is now Cap-Haitien. Read inside Taino politics the decision makes sense. Marien had neighbours and rivals, and strangers with deep hulled ships and metal weapons were a resource a cacique might want on his side of a local quarrel. Guacanagaric was calculating inside a game whose rules were about to be thrown out. Within a year the fort was ashes and its garrison dead, and within a generation the chiefdom he governed had ceased to exist along with almost everyone in it. That sequence repeated across the hemisphere for three centuries. It began on a beach in the north of Haiti.

The fourth Portuguese expedition to the Kongo landed in 1491 carrying priests, stonemasons, carpenters, horses, a few women, cloth and tools. The Mani Soyo, who governed the coastal province, was baptised at once together with his son while the implements of the old religion were piled up and burned. Two months later the party reached the capital, Mbanza Kongo, in the interior. The king, Nzinga Nkuvu, welcomed them and accepted baptism under the name Joao I, in honour of the reigning king of Portugal. Christianity in the Kongo, and in central Africa, starts here. The two societies were less foreign to each other than later accounts suggest. In both, disaster was explained by spiritual causes, sacred objects held real power, and religion belonged to the king, so that conversion was a decision taken at the top and then arranged between two crowns. Ordinary people in Iberia were as surrounded by saints and relics as villagers on the Zaire were by their own protectors.

In 1492 Christians completed the expulsion of Moors and Jews from the Iberian peninsula and forced conversion on those who stayed. The quarrel between the three religions of the book was old, but from that year it was reorganised around a new principle. Christian theology located the difference between Christian, Moor and Jew in the blood, which made descent rather than belief the test, and made conversion insufficient. In the same years the ranking of Spanish, Indian and African began to take shape in the Americas. By the eighteenth century blood as the marker of race had been transferred to skin, which is the form in which it reached the plantations of Saint-Domingue and the colour laws of the 1760s and 1770s. The doctrine that classified free people of colour by the number of their African ancestors was worked out first in Spain, against Jews and Muslims, before there was a Caribbean colony to apply it in.

Christopher Columbus opened the Atlantic trade in human beings by shipping about five hundred indigenous people from the Caribbean to Spain for sale. He was not improvising. Italian merchants and bankers in the Atlantic ports had been financing sugar estates and dealing in enslaved labour for generations, and the men who backed his voyages knew what a new island with a workable climate was for. What followed was the collapse of the people already living there. Smallpox, influenza and other diseases reached populations with no prior exposure and no immunity, and epidemics of that kind kill adults as readily as children, so households lost the people who planted and fished. Spanish violence and the wrecking of local food systems finished what the pathogens started. Millions of Caribbean islanders died within a few decades. The labour supply the Spanish had counted on disappeared, and the shortage they made themselves is why ships began sailing to Africa for replacements.