Answer:
The answer to your question is, "The Navigation Acts".
Explanation:
The last country to abolish slavery (in the Western world) was Brazil. It abolished slavery in 1888, by the time that almost 4 million slaves were transported from Africa to Brazil.
In the whole world, Mauritania was the last country to abolish slavery.
Labor force was needed in cities and thus jobs were offered plentifully
Explanation:
In the late 1800s industrialization created a tremendous amount of jobs and attracted a similar quantity of immigrants.
