Slavery developed largely because there were great needs for production which couldn't be paid by the people who owned slaves. They needed to have workers which would work for them at the same time they couldn't afford to pay this mass of people.
It developed differetly in the parts that are mentioned here because they had different needs at the time.
It was a speech by Abraham Lincoln, it was considered a very powerful speech .<span>it was a monumental act</span>
<span> started the modern labor movement in the united states
he helped form the American federation of laborers which he remained president until his death in 1924. He also represented the united states in the international labor organization, in its inception days at the conference that established it.
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