Abolitionism in the United Kingdom
Abolitionism in the United Kingdom was the movement in the late 18th and early 19th centuries to end the practice of slavery, whether formal or informal, in the United Kingdom, the British Empire and worldwide, including ending the Atlantic slave trade. It was part of a wider abolitionism movement in Western Europe and the Americas.
In the 17th century, English Granville Sharp and Hannah More to vigorously pursue the cause. Soon after his death in 1785, they joined with William Wilberforce and others in forming the Clapham Sect. Though anti-slavery sentiments were widespread by the late 18th century, the colonies and emerging nations that used slave labour continued to do so.
The last known form of enforced servitude of adults (villeinage) had disappeared in England by the beginning of the 17th century. In a 1569 court case involving Cartwright, who had bought a slave from Russia, the court ruled that English law could not recognise slavery, as it was never established officially. This ruling was overshadowed by later developments. It was upheld in 1700 by the Lord Chief Justice John Holt when he ruled that a slave became free as soon as he arrived in England.
In addition to English colonists importing slaves to the North American colonies, by the 18th century, traders began to import slaves from Africa, India and East Asia (where they were trading) to London and Edinburgh to work as personal servants. Men who migrated to the North American colonies often took their East Indian slaves or servants with them, as East Indians have been documented in colonial records.
Some of the first freedom suits, court cases in the British Isles to challenge the legality of slavery, took place in Scotland in 1755 and 1769. The cases were Montgomery v. Sheddan (1755) and Spens v. Dalrymple (1769). Each of the slaves had been baptised in Scotland and challenged the legality of slavery. They set the precedent of legal procedure in British courts that would later lead to successful outcomes for the plaintiffs. In these cases, deaths of the plaintiff and defendant, respectively, brought an end before court decisions.
African slaves were not bought or sold in London but were brought by masters from other areas. Together with people from other nations, especially non-Christian, Africans were considered foreigners, not able to be English subjects. At the time, England had no naturalisation procedure. The African slaves' legal status was unclear until 1772 and Somersett's Case, when the fugitive slave James Somersett forced a decision by the courts. Somersett had escaped, and his master, Charles Steuart, had him captured and imprisoned on board a ship, intending to ship him to Jamaica to be resold into slavery. While in London, Somersett had been baptised; three godparents issued a writ of habeas corpus. As a result, Lord Mansfield, Chief Justice of the Court of the King's Bench, had to judge whether Somersett's abduction was lawful or not under English Common Law. No legislation had ever been passed to establish slavery in England. The case received national attention, and five advocates supported the action on behalf of Somersett.
In his judgment of 22 June 1772, Mansfield declared:
"The state of slavery is of such a nature that it is incapable of being introduced on any reasons, moral or political, but only by positive law, which preserves its force long after the reasons, occasions, and time itself from whence it was created, is erased from memory. It is so odious, that nothing can be suffered to support it, but positive law. Whatever inconveniences, therefore, may follow from a decision, I cannot say this case is allowed or approved by the law of England; and therefore the black must be discharged."
Although the exact legal implications of the judgement are unclear when analysed by lawyers, the judgement was generally taken at the time to have determined that slavery did not exist under English common law and was thus prohibited in England. The decision did not apply to the British overseas territories; by then, for example, the American colonies had established slavery by positive laws. Somersett's case became a significant part of the common law of slavery in the English-speaking world and it helped launch the movement to abolish slavery.
After reading about Somersett's Case, Joseph Knight, an enslaved African who had been purchased by his master John Wedderburn in Jamaica and brought to Scotland, left him. Married and with a child, he filed a freedom suit, on the grounds that he could not be held as a slave in Great Britain. In the case of Knight v. Wedderburn (1778), Wedderburn said that Knight owed him "perpetual servitude". The Court of Sessions of Scotland ruled against him, saying that chattel slavery was not recognised under the law of Scotland, and slaves could seek court protection to leave a master or avoid being forcibly removed from Scotland to be returned to slavery in the colonies.
At the same time, legally mandated, hereditary slavery of Scots persons in Scotland had existed from 1606 and continued until 1799, when colliers and salters were emancipated by an act of the Parliament of Great Britain (39 Geo.III. c. 56). These skilled workers had been restricted to a place of work and could be sold with the works. A prior law enacted in 1775 (15 Geo.III. c. 28) was intended to end what the act referred to as "a state of slavery and bondage," but that was ineffective, necessitating the 1799 act.
Despite the ending of slavery in Great Britain, the United States continued to rely on it as an institution in the South, and the West Indian colonies of the British Empire also kept slavery. British banks continued to finance the commodities and shipping industries in the colonies they had earlier established that relied upon slavery, despite the legal developments in Great Britain itself. In 1785, the English poet William Cowper wrote:
"We have no slaves at home – Then why abroad? Slaves cannot breathe in England; if their lungs receive our air, that moment they are free, They touch our country, and their shackles fall. That's noble, and bespeaks a nation proud. And jealous of the blessing. Spread it then, And let it circulate through every vein."
In 1783, an anti-slavery movement began among the British population. That year a group of  On 17 June 1783, Sir Cecil Wray (one of the Members of Parliament for Westminster) presented the Quaker petition to parliament. Also in 1783, Dr Beilby Porteus, Bishop of Chester, issued a call to the Church of England to cease its involvement in the slave trade and to formulate a policy to improve the conditions of Afro-Caribbean slaves. The exploration of the African continent by such British groups as the African Association (1788), promoted the abolitionists' cause. Such expeditions highlighted the legitimate, complex cultures of Africans; before this, Europeans had considered them "other" and uncivilized. The African Association had close ties with William Wilberforce, who became known as a prominent figure in the battle for abolition in the British Empire.
Africans played an important part in the abolition movement. In Britain, Olaudah Equiano, whose autobiography was published in nine editions in his lifetime, campaigned tirelessly against the slave trade.
One aspect of the history of abolitionism during this period was the effective use of images such as the famous Wedgwood medallion of 1787 and the engraving showing the horrific layout of the infamous slave ship, the Brookes.
Growth of the movement
After the formation of the Committee for the Abolition of the Slave Trade in 1787, William Wilberforce led the cause of abolition through the parliamentary campaign. It finally abolished the slave trade in the British Empire with the Slave Trade Act 1807. He continued to campaign for the abolition of slavery in the British Empire, which he lived to see in the Slavery Abolition Act 1833.
The Atlantic slave trade, also called Triangle trade, encompassed the trafficking in slaves by British merchants who exported manufactured goods from ports such as Bristol and Liverpool, sold or exchanged these for slaves in West Africa (where the African chieftain hierarchy was tied to slavery), and shipped the slaves to British colonies and other Caribbean countries or the American colonies. There traders sold or exchanged the slaves for rum and sugar (in the Caribbean) and tobacco and rice (in the American South), which they took back to British ports. The merchants traded in three places with each round-trip. Political influence against the inhumanity of the slave trade grew strongly in the late 18th century.
People of both European and African ethnicity worked for abolition of the slave trade and slavery. Well-known abolitionists in Britain included James Ramsay, who had seen the cruelty of the trade at first hand; the Unitarian William Roscoe who courageously campaigned for parliament in the port city of Liverpool for which he was briefly M.P., Granville Sharp, Thomas Clarkson, Josiah Wedgwood, who produced the "Am I Not A Man And A Brother?" medallion for the Committee; and other members of the Clapham Sect of evangelical reformers, as well as Quakers.
The latter made up most of the Committee for the Abolition of the Slave Trade, and were the first to present a petition against the slave trade to the British Parliament. As Dissenters, Quakers were not eligible to become British MPs in the late 18th and early 19th centuries. The Anglican evangelist William Wilberforce led the parliamentary campaign. Clarkson became the group's most prominent researcher, gathering vast amounts of data, and gaining first hand accounts by interviewing sailors and former slaves at British ports such as Bristol, Liverpool and London.
Mainly because of Clarkson's efforts, a network of local abolition groups was established across England. They campaigned through public meetings and the publication of Baptists, Methodists and others. They reached out for support from the new industrial workers of the cities in the midlands and north of England. Even women and children, previously un-politicised groups, became involved in the campaign. At this time, women often had to hold separate meetings as there were social rules against their appearing in public meetings. They could not vote, nor could the majority of the men in Britain at the time.
The abolitionists negotiated with chieftains in West Africa to purchase land to establish 'Freetown' – a settlement for former slaves of the British Empire (the Poor Blacks of London) and the United States. Great Britain had promised freedom to American slaves who left rebel owners to join its cause during the American Revolutionary War. It evacuated thousands of slaves together with its troops and transported 3,000 Black Loyalists to Nova Scotia for resettlement. About a decade later, they were offered a chance to resettle in Freetown, and several hundred made the move. Freetown was the first settlement of the colony of Sierra Leone, which was protected under a British Act of Parliament in 1807–8. British influence in West Africa grew through a series of negotiations with local chieftains to end trading in slaves. These included agreements to permit British navy ships to intercept chieftains' ships to ensure their merchants were not carrying slaves.
In 1796, John Gabriel Stedman published the memoirs of his five-year voyage to the Dutch-controlled Surinam in South America as part of a military force sent out to subdue bosnegers, former slaves living in the interior. The book is critical of the treatment of slaves and contains many images by William Blake and Francesco Bartolozzi depicting the cruel treatment of runaway slaves. It was an example of what became a large body of abolitionist literature.
Slave Trade Act 1807
The Slave Trade Act was passed by the British Parliament on 25 March 1807, making the slave trade illegal throughout the British Empire. The Act imposed a fine of £100 for every slave found aboard a British ship. At a time when Napoleon decided to revive slavery, which had been abolished during the French Revolution, and to send his troops to re-enslave the people of Haiti, Guadeloupe and the other French Caribbean possessions, the British took the moral high ground with their prohibition of the slave trade.
The act's intention was to entirely outlaw the slave trade within the British Empire, but the lucrative trade continued through smuggling. Sometimes captains at risk of being caught by the Royal Navy would throw slaves into the sea to reduce their fines. In 1827, Britain defined participation in the slave trade as piracy and punishable by death. Between 1808 and 1860, the Royal Navy's West Africa Squadron seized approximately 1,600 slave ships and freed 150,000 Africans who were aboard. Britain used its influence to coerce other countries to agree treaties to end their slave trade and allow the Royal Navy to seize their salve ships. Action was also taken against African leaders who refused to agree to British treaties to outlaw the trade, for example, in 1851 it deposed "the usurping King of Lagos". Britain signed anti-slavery treaties with more than 50 African rulers.
Slavery Abolition Act 1833
After the 1807 Act, slaves were still held, though not sold, within the British Empire. In the 1820s, the abolitionist movement revived the campaign against the institution of slavery. In 1823 the first Anti-Slavery Society was founded in Britain. Many members had previously campaigned against the slave trade. In 1831 the slave Sam Sharpe led a Christmas rebellion in Jamaica, an event that catalyzed anti-slavery sentiment.
On 28 August 1833, the Slavery Abolition Act received Royal Assent, paving the way for the abolition of slavery within the British Empire and its colonies. On 1 August 1834, all slaves in the British Empire were emancipated, but they were indentured to their former owners in an apprenticeship system that meant gradual abolition: the first set of apprenticeships came to an end on 1 August 1838, while the final apprenticeships were scheduled to cease on 1 August 1840, two years later.
On 1 August 1834, as the Governor in Port of Spain, Trinidad addressed an audience about the new laws, the mostly elderly, unarmed slaves began chanting: "Pas de six ans. Point de six ans" ("Not six years. No six years"), drowning out his voice. Peaceful protests continued until the government passed a resolution to abolish apprenticeship and the slaves gained de facto freedom. Full emancipation for all slaves was legally granted on 1 August 1838, ahead of schedule, making Trinidad the first British slave society to fully end slavery. The government set aside £20 million for compensation of slave owners for their "property" across the Empire, but it did not offer the former slaves compensation or reparations.
Campaigning after the act
In 1839, the British and Foreign Anti-Slavery Society was formed. At the time, the British economy continued to import cotton and other commodities from the U.S. Deep South, which relied heavily on slavery for cotton production, to fuel the spinning and weaving mills in Manchester and other Northern cities. The finished goods furnished Britain's low-wage, export-driven, manufacturing economy with surpluses exported to Europe and India. London merchant-banks made loans throughout the supply-chain to planters, factors, ware-housers, carters, shippers, spinners, weavers, and exporters.
The British and Foreign Anti-Slavery Society campaigned to outlaw slavery in other countries and pressured the British government to do more to enforce the suppression of the slave trade by declaring 
- Abolition of slavery timeline
- Abolitionism in the United States
- Abolitionism in France
- Abolitionism and paintings of Queen Charlotte
- Slavery in the British and French Caribbean
- Slavery in the British Isles
- Slavery in the British Virgin Islands
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