Better ships and a compass let Europe reach the Atlantic islands

Through the fifteenth century Portuguese and Spanish builders produced ships made for the open ocean, and their navigators learned to use the compass and to read the Atlantic's currents and prevailing winds well enough to sail out and get home again. That combination opened the Atlantic islands. Madeira, the Canaries and Cape Verde were reached and settled. Italian merchants, who had financed and run sugar around the Mediterranean for generations, worked with the Iberian colonisers to establish the crop on those islands, grown by enslaved people. The plantation of the Americas was assembled there first, in miniature and offshore. The ships did something else as well. Until then the winds and the distances had kept the Western Hemisphere out of contact with Africa and Eurasia. Once the route was solved that barrier was gone for good, and everything that followed for the people of the Caribbean followed from a set of technical problems being solved in Lisbon and in Seville.

Italian and Iberian merchants carried sugarcane out to the Atlantic islands during the fifteenth century, planting it on Madeira and in the Canaries. Sugar was not a new business for them. They had been growing and refining it around the Mediterranean for generations, using bound labour on estates in places like Cyprus and Sicily. What the islands changed was the setting. Here was land nobody in Europe held a prior claim on, a climate that suited the cane, and a workforce that could be shipped in from elsewhere. That is the plantation as it would later stand in the Caribbean, complete except for scale. I keep this on a Haitian timeline because of how often Saint-Domingue gets described as something new, an invention of the eighteenth century and a French one. It was a model that had been running for three hundred years by then. What the French did was move it west and make it enormous.