
author
1760–1846
A tireless force in the British abolition movement, he turned moral conviction into years of investigation, organizing, and public campaigning. His work helped build the case against the slave trade and made him one of the movement’s most persistent voices.

by Thomas Clarkson

by Thomas Clarkson
Born in Wisbech, Cambridgeshire, in 1760, Thomas Clarkson studied at St John's College, Cambridge. A prize essay on whether it was lawful to enslave others changed the course of his life: after researching the subject, he committed himself to fighting the slave trade.
Clarkson became one of the key organizers and public campaigners behind Britain’s abolition movement. He helped found the Society for Effecting the Abolition of the Slave Trade and traveled widely to gather evidence about the horrors of the trade, speaking with sailors, collecting instruments used on slave ships, and building public support for change.
Although others in Parliament carried the legislative battle, Clarkson’s relentless work outside it was crucial to the passage of the Slave Trade Act of 1807. He continued campaigning against slavery more broadly for decades afterward, and by the time of his death in 1846 he was widely recognized as one of the movement’s central figures.