Quakers were a Christian group that condemned slavery in the late 1700s. They argued that slavery was against Christian teaching. They produced many pamphlets and books against that slave trade.
Evangelicals believed that it was important to follow the teachings of Christ and that we should treat our neighbour as we wish to be treated. Evangelicals denounced slavery as the greatest sin against God's will and played a major role in turning public opinion against slavery.
Many abolitionists such as Wilberforce, Clarkson and Newton were Evangelicals.
