The person recognized for their role in the abolition of slavery in the United Kingdom is William Wilberforce. A prominent politician and member of the Clapham Sect, Wilberforce dedicated much of his life to advocating for social reform, focusing particularly on the abolition of the slave trade. His relentless campaigning culminated in the passage of the Abolition of the Slave Trade Act in 1807, which made it illegal to engage in the slave trade throughout the British Empire. Wilberforce's efforts not only changed the law but also inspired further movements for social justice and human rights.