Not trying to be rude but nobody is going to write a whole essay for you :/
Other than freeing Spain and Portugal from the Moors, the Christian population largely increased. This is due to the fact that the Muslims in Spain were exiled or killed. This resulted to the dominance and preservation of Christianity in the region.
Answer:
was prominent in the struggle to abolish the slave trade and then to abolish slavery itself in British overseas possessions.
Explanation:
I think it was to use immagrents to do the work.