Transatlantic slave trade

Transatlantic slave trade
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Name	Transatlantic slave trade
Caption	Diagram of a slave ship's hold, 18th century
Years	16th–19th centuries
Area	Atlantic Ocean, West Africa, Caribbean, Americas, Europe
Participants	Portugal, Spain, Netherlands, France, Great Britain, Denmark–Norway, Sweden, United States

Transatlantic slave trade The transatlantic slave trade was the large-scale forced migration and commercial trafficking of enslaved African people across the Atlantic Ocean from the early modern to the industrial era. It linked ports and polities in West Africa, the Caribbean, Brazil, British North America, and Europe through triangular shipping routes driven by demand for labor on plantations and in mines. Prominent actors included maritime powers such as Portugal, Spain, Great Britain, France, and the Netherlands and institutions like the Royal African Company and the Dutch West India Company.

Overview

From the 15th to the 19th centuries, voyages organized by agents from Lisbon, Seville, Amsterdam, London, Bristol, Liverpool, Nantes, and Danish West Indies ports transported millions of captives taken from zones including the Bight of Benin, the Bight of Biafra, the Gold Coast, and the Senegambia. European monarchs and chartered companies such as the House of Aviz, the Habsburg Monarchy, the Württemberg financiers, and the Medici-linked traders combined with coastal African polities like the Kingdom of Dahomey, Ashanti Empire, Benin Kingdom, and Oyo Empire. Commodities interchanged included sugar from Saint-Domingue, tobacco from Virginia, cotton from Brazil, and silver from Potosí; key shipping nodes included Cape Verde, Gibraltar, Madeira, and São Tomé and Príncipe.

Origins and Development

Early precedents trace to Portuguese voyages under the House of Aviz and explorers like Prince Henry the Navigator, with expansion following the voyages of Christopher Columbus and the Iberian colonization of the Americas under Isabella I of Castile and Ferdinand II of Aragon. The Treaty of Tordesillas influenced early territorial claims, while institutions such as the Casa da Índia and the Casa de Contratación regulated imperial trade. The seventeenth century saw the rise of chartered companies—Dutch West India Company, Royal African Company, and the Compagnie des Indes Occidentales—and competition among crown-backed merchants including rivals from Hamburg and Bremen. African political entities including Sokoto Caliphate networks, the Kingdom of Kongo, and coastal rulers negotiated, raided, and sold captives through markets in Elmina, Goree Island, and Ouidah, while figures like Queen Nzinga and Bonga of Igboho resisted incursions.

Middle Passage and Conditions

The transoceanic leg, often called the Middle Passage by contemporaries and later historians, routed slave ships from Atlantic African slaving forts such as Elmina Castle, São Jorge da Mina, and Fort Christiansborg to plantation colonies like Saint-Domingue, São Paulo (Brazil), Barbados, and Jamaica. Ships outfitted in Bristol and Liverpool—some by merchants like the firm of John Hawkins predecessors—packed captives in holds depicted in contemporary plates and testimonies. Mortality figures are documented in voyage logs and slaving registers kept by companies such as the Royal African Company and by officials in Seville and Lisbon; conditions involved overcrowding, disease outbreaks like smallpox and yellow fever, and practices policed by captains influenced by maritime law from Admiralty of England and ordinances from Castile and León ports.

Economic Impact and Institutions

Plantation economies depended on labor for cash crops: sugar mills in Saint-Domingue and Martinique underpinned fortunes of firms with links to Paris financiers, while mining in Potosí and plantation cotton in Bahia relied on coerced labor. Insurance markets in Lloyd's of London and merchant banks in Amsterdam and Antwerp financed slaving voyages, and exchanges in Antwerp and Lisbon traded bills and commodity contracts. Colonial legislatures like those in Virginia and Barbados enacted codes—comparable to slave statutes debated in the House of Commons and in the French National Convention—that structured labor, credit, and property relations; major traders included firms registered in London, Amsterdam, Bordeaux, and Cádiz.

Abolition Movements and Legal Endings

Opposition emerged from diverse quarters: abolitionists in Britain such as members of the Clapham Sect and campaigners like William Wilberforce and Granville Sharp lobbied parliaments in Westminster, while abolitionists in France including Olympe de Gouges and lawmakers in the French Republic debated emancipation alongside revolutionary upheavals connected to the Haitian Revolution and figures like Toussaint Louverture. Legal ends came via acts like the Slave Trade Act 1807 in United Kingdom and the Act Prohibiting Importation of Slaves in the United States (1808), and treaties among Portugal, Spain, and Prussia confronted abolition in diplomatic fora such as the Congress of Vienna. Enforcement relied on naval squadrons including the Royal Navy West Africa Squadron and courts like the Vice Admiralty Court in Freetown.

Legacy and Demographic Consequences

The demographic impact reconfigured populations across Brazil, Cuba, Haiti, Jamaica, and United States (pre-1907) territories, altering genetic, cultural, and linguistic landscapes through creolization evident in languages such as Haitian Creole and cultural forms like capoeira and Santería. Urban and rural settlements—Salvador, Bahia, Kingston, Jamaica, Charleston, South Carolina—bear architectural and institutional traces tied to plantation economies and merchant houses. Historians working with sources in archives in Seville, Lisbon, The National Archives (UK), and Bibliothèque nationale de France employ shipping registers, manumission records, and court papers to estimate forced migrations and mortality; scholars such as Eric Williams, Stanley Engerman, Ira Berlin, Beatriz Manz, and Seymour Drescher have advanced debates over economic causation, labor systems, and legacies of racial slavery. Contemporary debates about reparations and memory involve institutions like United Nations, national legislatures, and cultural sites such as Goree Island and Elmina Castle as loci for commemoration and study.

Category:Atlantic history