Notes on the Transatlantic Slave Trade

Key Historical Terminology

  • Colonialism: The practice of a foreign government exercising political or economic control of another community.

  • Plantation: A large-scale farm used for growing commercial crops such as rubber, tea, cotton, or coffee; often using enslaved labor.

  • Indigenous: Having origin in a country or locality.

  • Mercantilism: An economic belief that the best strategy for a country is to get wealth by maximizing exports to other countries.

  • Industrial Revolution: The period in the 18th and 19th centuries when machines were first used to produce goods on a large scale.

Historical Systems of Slavery Prior to the Sixteenth Century

  • Universal Historical Existence:

    • Slavery and slave trading existed in some of the earliest human civilizations, including the Athenians, Romans, Assyrians, and early societies in China and India.

  • Pre-European African Slavery:

    • Existed prior to European contact, tied directly to warfare, debt, religious duties, and criminal punishment.

    • Slaves were treated as a distinct social class rather than sub-human property (chattel).

    • Social mobility was possible: slaves could escape their condition and integrate into the captor's society as free members.

    • Status was non-hereditary; children born to enslaved parents were considered free.

  • Medieval Trans-Saharan and Maritime Trade to the Muslim World:

    • Enslaved Africans were traded across routes into the Muslim world during the Middle Ages.

    • Female captives outnumbered male captives by a ratio of 2:12:1.

    • Primary roles included domestic work and sex slavery, though certain individuals occasionally attained significant positions within Muslim governance and society.

A depiction of a female Berber slave

Origins and Overview of the Transatlantic Slave Trade

  • Establishment and Timeline:

    • Inter-American slave trading began shortly after Spanish and Portuguese arrival in the New World.

    • Transatlantic voyages specifically transporting captives from Africa to the Americas commenced around 15261526 and persisted into the nineteenth century.

  • Plantation Labor Demands:

    • European powers established colonies in Brazil and the Caribbean, converting land into massive sugar plantations.

    • Portuguese and Spanish settlers refused to perform manual labor on plantations.

    • European epidemics drastically reduced Indigenous American populations, creating an acute labor shortage.

    • African captives were selected due to their immunity to European diseases and unfamiliarity with the geography of the Americas, which restricted opportunities for escape.

  • Ideological and Cultural Justifications:

    • Concepts of racial hierarchy and African racial inferiority were constructed and utilized by Europeans to justify mass enslavement.

    • Religious and cultural frameworks framed non-Christian Africans as non-civilized individuals who could not participate as full societal members.

  • Scale and Violence:

    • Approximately 12.5 million12.5\text{ million} Africans were captured and embarked on ships from the African coast.

    • Approximately 2.5 million2.5\text{ million} captives perished during the ocean crossing, representing a 15%15\% mortality rate.

    • Slaves were subjected to physical branding with hot iron instruments to permanently define them as legal private property.

Using brands to permanently mark enslaved people as private propertyA map depicting the transatlantic slave trade

Impact on African Societies and Geopolitics

  • Social and Structural Collapse:

    • Coastal and inland slave raids destabilized and destroyed entire African communities.

    • European colonizers used the resulting social collapse as a circular justification for continued enslavement.

  • Escalation of Regional Inter-State Warfare:

    • The trade provided powerful financial and military incentives for African leaders to initiate wars against neighboring territories to secure captives.

    • Case Study: The West African Oyo Empire invaded and conquered rival southern Yoruba states, selling captured prisoners into the slave market.

    • In exchange for captives, African states received European manufactured goods, including firearms, glass, cotton textiles, and food items refined using sugar produced by enslaved labor in the Americas.

    • European powers extracted profit from African military conflicts without committing ground forces.

  • Sugar Economy Dominance:

    • By the 1800s1800\text{s}, over 80%80\% (more than 88 out of 1010) of all enslaved Africans brought to the Americas were sent directly to sugar plantations in Brazil or the Caribbean.

    • Enslaved laborers worked continuous hours from sunrise to sunset under extreme physical conditions.

    • Average life expectancy for an enslaved worker on Brazilian sugar plantations was only 23 years23\text{ years}.

    • Continuous high mortality created a self-sustaining cycle of demand, requiring a new captive imported for every worker who died.

The Triangular Trade and Global Economic Systems

  • Structure of the Three-Legged Trade Network:

    • First Leg: European ports to Africa, transporting manufactured consumer products, textiles, rum, and firearms.

    • Second Leg (The Middle Passage): African coastal ports to the Americas, transporting human cargo.

    • Third Leg: American ports to Europe, shipping raw agricultural products and cash crops including sugar, tobacco, and cotton.

  • Economic Philosophy and Industrial Impact:

    • Operated under the system of mercantilism, which measured national strength by maximizing exports over imports to build financial wealth.

    • The capital, resources, and raw materials accumulated through transatlantic slave operations directly fueled the Industrial Revolution in Europe during the eighteenth and nineteenth centuries.

The three legs of the Triangle Trade

The Middle Passage and Coastal Imprisonment

  • Inland Capture and Coastal Transit:

    • Captives were abducted from various ethnic groups deep in the African interior.

    • Slave traders equipped with European firearms force-marched captives over distances exceeding 1,000 miles1,000\text{ miles} to coastal holding facilities.

  • Coastal Fortresses (Points of No Return):

    • Captured Africans were incarcerated inside stone fortress-prisons (such as Cape Coast Castle in Ghana) situated along the West African coast.

    • Known as Points of No Return, these prisons were the final physical locations on the continent experienced by those held captive before boarding slave ships.

Cape Coast Castle, Ghana
  • Conditions Aboard the Ships:

    • Voyage duration ranged from 2 to 3 months2\text{ to }3\text{ months} across the Atlantic Ocean.

    • Captives were locked below deck at night, chained together, and packed into spaces smaller than a standard coffin.

    • Accumulation of bodily fluids, including feces, urine, and vomit, created extreme sanitary hazards.

    • Deceased captives remained chained alongside living captives until morning inspections.

    • Crew members systematically threw sick individuals showing signs of disease overboard while alive to prevent contagious outbreaks from destroying ship profits.

  • Shipboard Regimen and Livestock Market Sale:

    • On days with favorable weather, captives were brought to the top deck for forced exercise while remaining in iron chains.

    • Diets consisted almost entirely of mushy beans.

    • Prior to arriving at port destinations, crew members increased food calorie intake and provided meat to conceal signs of starvation and inflate auction sale prices.

    • Upon arrival in the Americas, survivors were marketed and sold in public livestock-style auctions to plantation owners.

Detail of a ship's hold carrying enslaved Africans