Throwing knives map the reach of Congo basin trade in metal

African smiths of the second iron age made a weapon out of several blades forged separately and welded into one body, thrown so that it struck with whichever edge arrived first. The earliest examples may come from Darfur, in what is now Sudan. Across the first and second millennia of the common era the form travelled further than the double bells did, reaching peoples along the Ubangi River and well beyond them. Making one demanded the full repertoire of the period: sheet forging, welding, and the joining of separate pieces into a single working object. The distribution is the argument. These knives were manufactured for markets thousands of kilometres wide, and their spread traces the same commercial routes that carried goods, livestock, vocabulary and political ideas across the middle of the continent. Ehret uses them as physical proof of a commercial revolution in equatorial and southern Africa. People shipped to Saint-Domingue out of the Congo basin came from that world and were told they had come from nowhere.

Hispaniola is the second largest island in the Caribbean and the ground on which several of the most consequential events in the hemisphere took place. Haiti holds the western third and the Dominican Republic the eastern two thirds. Columbus named it La Isla Espanola in 1492, the Spanish island, and the Latin form of the shortened version became the standard name in English. Together with Cuba, Jamaica and Puerto Rico it makes up the Greater Antilles. The colonial names still cause confusion in print. Saint-Domingue was the French colony in the west and Santo Domingo the Spanish colony in the east, and writers applied both loosely to the whole island, blurring the distinction between two territories that were already becoming separate countries. The Taino had their own words for the place. Those words appear in a few early Spanish documents and then vanish. A name is a small thing to lose, and it is usually the first thing taken.

Less than twelve months separate the founding of La Navidad from its destruction. Columbus left the garrison on the north coast of Hispaniola in January 1493, and the Taino of the surrounding country burned the place before the year was out. Geggus is direct about the cause. The Spaniards left there preyed on the people around them, and the people around them answered. That reading matters because of what the standard chronology usually does with the episode, which is to file it under indigenous treachery and move on. The men in the fort had no supply line, no authority over anyone and no restraint. They took food, they took women, and they went looking for gold in country whose owners had agreed to none of it. The response was local, organised and effective. The first act of armed resistance to European settlement anywhere in the Americas happened here, and it worked.

Work on Sao Jorge da Mina began on 20 January 1482 on the Gold Coast of what is now Ghana, and the castle was finished the following year. Europeans had traded along this shore from ships and temporary posts. A square stone fort with steep stairways and deep dungeons said something else: the Portuguese intended to hold ground in Africa permanently. The building outlasted them. It passed to the Dutch and then to the British, and for more than three hundred years a large cistern under its base supplied fresh water to vessels loading for the Middle Passage. Water is what a slave ship runs out of first, and a captain who could fill his casks at Elmina could carry more people and sail further. Thousands of captives were driven through the opening in its wall that later generations named the door of no return, some bound for the Americas and others for ports elsewhere on the African coast. Elmina is the oldest European building still standing south of the Sahara.