On July 2, 1776, the Continental Congress voted to approve a motion calling for separation from Britain. The dramatic words of this resolution were added to the closing of the Declaration of Independence. Two days later, on July 4, the declaration was formally adopted by 12 colonies after a revision.
Before the slave trade, African culture was agricultural and advanced. The African slave trade started when the leaders of European countries wanted to find new land. Slavery started for many reasons like money, greed, and high demand for labor.
The Cabinet's role is to advise the President on any subject he may require relating to the duties of each member's respective office. The tradition of the Cabinet dates back to the beginnings of the Presidency itself.