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Thomas Clarkson (1760-1846), Slavery abolitionist

Sitter in 11 portraits
Thomas Clarkson devoted his life to abolitionism. His An Essay on the Slavery and Commerce of the Human Species (1786) brought him into association with Granville Sharp, William Wilberforce and other opponents of slavery; Clarkson joined them in forming a society for the abolition of the slave trade. He visited British ports to collect facts for his pamphlet A Summary View of the Slave Trade and of the Probable Consequences of Its Abolition (1787), and the evidence that he gathered was used in the antislavery campaign led by Wilberforce in Parliament. In 1807, a bill for the abolition of the slave trade finally was passed, and the next year Clarkson's two-volume history of the trade was published.