Answer:
The Age of Reason, as it was called, was spreading rapidly across Europe. On their side of the Atlantic, Enlightened ideas of liberty and progress had a chance to flourish without the shackles of Old Europe. Religious leaders began to change their old dogmatic positions.
Religion.
Most "pro-lifers" are far-right Evangelical Christians.
There were more jobs in the cities, if everyone worked on a farm there wuld be more than billions of grocery stores, then they would be wasting food because not everyone would buy evrything!
Explanation:
Slavery, condition in which one human being was owned by another. ... a perceived labour shortage, for otherwise it is unlikely that most people would bother to acquire or to keep slaves.