Britain, the Slave Trade and Abolition
British traders forced enslaved Africans across the Atlantic. Merchants, investors and port businesses profited from this trade and plantation goods. Campaigners and enslaved people challenged slavery. Banning British participation in the trade and ending slavery required different laws.
What a learner can do afterwards
- Describe the three routes in a triangular-trade diagram and explain that actual voyages varied
- Name two things abolitionists did to change public opinion
- Say why Britain's 1807 ban on the trade did not free people already enslaved
1 · Read
British traders forced captive Africans across the Atlantic for sale into slavery. A triangular-trade diagram links three routes: manufactured goods such as guns, cloth and metal goods from Europe to Africa; captive Africans from Africa to the Americas; and crops such as sugar, tobacco and cotton from the Americas to Europe. Actual voyages varied. Not every ship followed the whole triangle.
The Middle Passage was the forced Atlantic crossing from Africa to the Americas. Crowded ships, hunger, disease and violence caused great suffering and many deaths. Merchants, investors and businesses in ports such as Liverpool and Bristol profited from the slave trade and plantation goods. This does not mean every resident became wealthy.
Enslaved people resisted by slowing work, breaking tools, escaping and organising revolts. Preserving faith and culture also helped people face oppression. In Saint-Domingue, a French colony, revolt helped overthrow slavery and led to independent Haiti in 1804. Slavery continued in other places.
Abolitionists campaigned to end the trade and slavery. They gathered petitions, showed diagrams of crowded slave ships and boycotted slave-grown sugar. In a boycott, people refuse to buy something to put pressure on sellers. Olaudah Equiano, a formerly enslaved writer, described slavery and the Middle Passage in his book and spoke against slavery around Britain. Women helped organise boycotts and campaigns.
Britain's 1807 law banned British participation in the slave trade. It did not free people already enslaved, and illegal trading continued. The Slavery Abolition Act passed in 1833 and took effect in most British colonies in 1834. Many people then had to work under forced apprenticeship. In the British Caribbean, this system ended in 1838. These laws did not end slavery everywhere in the empire.
Parliament's role in making laws connects this story to the previous lesson. Historians compare campaigns, resistance and economic interests to explain abolition. Some businesses benefited from slavery and opposed change. Historians debate how economic changes affected decisions. No single theory explains every place and date.
British trade linked goods, captive people and crops. Campaigning and resistance challenged slavery. Banning the trade did not free people already enslaved.
This lesson, its questions, worked solutions and flashcards were written for this dataset. Khan Academy records, including Trevor Getz's discussion of abolition, were consulted for facts, without adapting their prose.
The readings and flashcards were written for this dataset, with the supplied historical records consulted for facts. Linked videos are TED-Ed's Atlantic slave-trade lesson by Anthony Hazard and Turner, Slave Ship, featuring Lori Landay and Beth Harris, provided through Khan Academy.
More to read
Slavery and resistance in the colonies
Colonial laws treated enslaved people as property and denied them freedom. Plantation owners forced people to grow and process crops such as sugar and tobacco. Violence supported this system.
Enslaved people challenged that control. They slowed work, broke tools, escaped and organised revolts. Keeping faith, music and community also helped people face oppression. Resistance took different forms in different places.
People outside plantations could benefit too. Merchants, investors and port businesses profited from voyages and plantation goods. This does not mean every resident of a trading port became wealthy. Historians study particular people, businesses and records to understand who gained from slavery.
Reading a triangular-trade model
A triangle can show three linked Atlantic routes. Manufactured goods travelled from Europe to Africa. Captive Africans were forced across the Atlantic to the Americas. Crops produced through enslaved labour travelled from the Americas to Europe.
This diagram is a model, not a record of every voyage. Ships took different routes and could visit several ports. A ship did not have to complete a whole triangle to take part in the trading network.
The Middle Passage names the forced crossing from Africa to the Americas. It is different from the routes carrying manufactured goods or crops. The captive people were being enslaved, not choosing to move for work.
Different ways to campaign
British abolition campaigns used several methods. Petitions collected names and presented demands to Parliament. Diagrams of crowded slave ships helped readers picture conditions. In sugar boycotts, shoppers were asked to stop buying sugar to put pressure on sellers.
Olaudah Equiano contributed through writing and speaking. He was formerly enslaved, and his book described slavery and the Middle Passage. He spoke against slavery around Britain. Women also helped organise campaigns and boycotts.
These methods could influence public opinion and political decisions. None guaranteed a change in law. Enslaved people's resistance was also part of this history. Abolition cannot be explained as British campaigners acting alone.
Different laws and different outcomes
Britain's 1807 law banned British participation in the slave trade. It did not free people already enslaved. Illegal trading continued, so passing the law and enforcing it were different tasks.
The Slavery Abolition Act passed in 1833 and took effect in most British colonies in 1834. Many people then had to work under forced apprenticeship. In the British Caribbean, that system ended in 1838. The Act did not cover every part of the empire.
Historians compare campaigning, resistance, political decisions and economic interests when explaining abolition. Haiti's revolution overthrew slavery there and led to independence in 1804, but slavery continued elsewhere. Different places followed different paths.
Trade rules and colonial profits
Mercantilism linked national strength to wealth and trade. Governments sought to export more than they imported and to build supplies of gold and silver. Colonies could provide raw materials and markets for finished goods.
England's Navigation Acts restricted shipping and trade to favour business within its empire and reduce foreign competition. Parliament began this series of laws in 1651. Later laws changed the rules, and enforcement varied.
Products made through enslaved labour formed part of this trade. Merchants and governments could benefit. These interests help explain opposition to abolition, but they do not by themselves explain when or why abolition laws passed.
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