Answer: False
There was never a law that allowed slavery in Great Britain. However, slavery was de facto accepted and the practice was encouraged in the colonies. In the early 19th century, the abolitionist movement started to gain ground. William Wilberforce was the main leader in this movement, due to his conversion to Evangelical Christianity. The Slave Trade Act was passed in 1807, and the Slavery Abolition Act in 1833. Colonists who were losing their slaves were financially compensated.