According to John Locke, in his Second Treatise on Civil Government, the people has the right to overthrow a tyrant, defined here as "the exercise of power beyond right." This is termed "the right of revolution." This is viewed as necessary in the creation and maintenance of a "just civil society." This is viewed as a right or duty of the people to accomplish this goal.
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When the ship docked the slaves would be taken ashore and put in barns, pens or any other suitable building. Some traders made an attempt to clean them and make them look healthy before the auction started.