It gave empires new technologies and attracted more people
Most slaves were field workers, easily replaced, and therefore, the Europeans filled their pockets with goods from West Coast Africa, including human cargo.
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Maintaining a police force is one of the ways in which state governments provide public safety. The presence of an effective police force is essential in order to enforce the law, provide citizens with different kinds of assistance and prosecuting individuals acting against the society.
Citizens-adult man-voted for the laws they supported