From the 1760s activists in London challenged the morality and legality of the slave trade. They included former slaves, like Olaudah Equiano and the abolitionist campaigners Granville Sharp and William Wilberforce.
Women who opposed slavery took the lead in boycotts of slave-grown produce, particularly sugar. Slavery abolitionists used badges and iconic images to publicise their views, like the sugar bowl above made by Wedgewood. Enormous petitions opposing the slave trade were delivered to the House of Commons.