How did the Atlantic slave trade operate and grow, and why was it abolished by Britain in the early nineteenth century?
The development and operation of the triangular trade, the slave trade's effects on Britain and West Africa, the conditions of enslaved people, resistance and rebellion, and the reasons for abolition in 1807 and 1833.
An SQA Higher History answer on the Atlantic Slave Trade, covering the triangular trade and the Middle Passage, the trade's effects on Britain and West Africa, the conditions of enslaved people, resistance and rebellion, and the reasons for British abolition in 1807 and 1833.
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What this key area is asking
The SQA wants you to explain how the Atlantic slave trade worked and grew, its effects on Britain, West Africa and the Caribbean, the brutal conditions enslaved people endured, how they resisted, and above all why Britain abolished the trade in 1807 and slavery in 1833. This is a British option assessed by extended-response (essay) questions, so balance economic, humanitarian and political factors and reach a judgement.
The triangular trade and the Middle Passage
- Capture and sale. Africans were captured in raids and wars and sold to European traders at coastal forts such as Cape Coast Castle and Bonny.
- The Middle Passage packed people below decks in appalling conditions; around 1.8 million of the roughly 12 million Africans shipped died on the crossing. Over the whole trade British ships carried around 3.4 million, the largest national share by the 1700s.
- Plantation labour. Survivors were sold to work on Caribbean and American sugar, tobacco and cotton plantations under brutal discipline and high mortality.
Effects on Britain and West Africa
- Britain. The trade brought wealth to ports and merchants, supplied cheap sugar and tobacco, and helped finance economic growth. The Williams thesis (Eric Williams, 1944) argues slave profits helped fund industrialisation; later historians such as Engerman and Drescher dispute how central it was.
- West Africa. The demand for captives encouraged raiding and war, removed millions of young people of working age, and distorted local economies and political structures.
The conditions of enslaved people and resistance
- Plantation life meant gruelling labour, harsh punishment, poor food and housing, and the constant threat of family separation, sexual violence and early death.
- Resistance took many forms: slowing work, breaking tools, running away (maroon communities), preserving African culture and religion, and outright revolt. The Haitian Revolution (1791 to 1804), led by Toussaint Louverture, overthrew French slavery and created the first independent black republic, frightening slave-holders across the Atlantic. Later British revolts (Demerara 1823, Jamaica 1831 to 1832, the "Baptist War" led by Sam Sharpe) raised the cost of holding slavery in place.
The reasons for abolition
- The humanitarian campaign. The Society for the Abolition of the Slave Trade (1787), with William Wilberforce leading in Parliament from 1789, Thomas Clarkson gathering evidence, the formerly enslaved Olaudah Equiano publishing his Interesting Narrative (1789), the Quakers, mass petitions and a sugar boycott kept abolition in the public eye.
- Moral and religious arguments. Evangelical and Enlightenment ideas held slavery to be sinful and a denial of natural rights.
- Slave resistance. Revolts, above all Haiti, made slavery costly and dangerous and undermined the argument that enslaved people accepted their lot.
- Economic change. Some historians (following Williams) argue the British West Indian sugar economy was declining and that new industries and free-trade ideas made the trade seem less essential, though this interpretation is contested by Drescher's "econocide" critique.
Examples in context
A strong analytical paragraph weighing the factors might run: "The humanitarian campaign supplied the moral case and the political organisation: Clarkson's diagram of the slave ship Brookes, showing 482 people packed into a single vessel, became one of the most effective pieces of propaganda of the age, and the 1792 petitions carried around 400,000 signatures. Yet moral pressure alone had failed for years, and abolition came in 1807 only when war with France, the saturation of West Indian sugar markets, and the terrifying example of Haiti made the trade look both dangerous and dispensable to enough MPs." This makes a point, supports it with precise detail, and reaches a balanced judgement.
Try this
Q1. What were the three legs of the triangular trade? [3 marks]
- Cue. Goods from Britain to Africa; enslaved Africans to the Americas; plantation produce back to Britain.
Q2. In which years did Britain abolish the slave trade and slavery itself? [2 marks]
- Cue. The slave trade in 1807 and slavery in 1833.
Exam-style practice questions
Practice questions written in the style of SQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
SQA Higher 201920 marksHow important was the slave trade to the British economy in the eighteenth century?Show worked answer →
SQA marks the essay out of 20 across structure, an introduction with a line of argument, knowledge, analysis and a supported conclusion. The named factor is the trade's economic importance.
Argue its importance: the profits of slaving ports (Bristol, Liverpool, and Glasgow's tobacco lords) flowed into banking, insurance, shipbuilding and industry, and cheap slave-grown sugar, tobacco and cotton supplied British markets and manufacturers. Cite the Williams thesis (Eric Williams, Capitalism and Slavery, 1944) that slave profits helped finance the Industrial Revolution.
Then balance the critics (Engerman, Drescher) who argue the slave economy was a small share of national income and that British industrialisation had many sources. SQA rewards a judgement that the trade was significant but not the sole engine of British growth.
SQA Higher 202120 marksTo what extent was the abolition of the slave trade in 1807 the result of the humanitarian campaign?Show worked answer →
A "to what extent" essay needs a weighed judgement. Detail the humanitarian campaign: the Society for the Abolition of the Slave Trade (1787), Wilberforce in Parliament from 1789, Clarkson's evidence-gathering, Equiano's testimony, the Quakers, and the mass petitions and sugar boycott.
Argue its role, then weigh the other factors: slave resistance and the Haitian Revolution (1791 to 1804) which made the system costly and frightening, the economic-decline argument (Eric Williams), the impact of war with France, and the political shift after 1806. SQA rewards a conclusion ranking the factors, for example that the humanitarian campaign built the pressure but resistance and changing economic and political conditions made abolition achievable.
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Sources & how we know this
- SQA Higher History Course Specification — SQA (2018)