The size of the Atlantic slave trade dramatically transformed African societies. The slave trade brought about a negative impact on African societies and led to the long-term impoverishment of West Africa. This intensified effects that were already present amongst its rulers, kinships, kingdoms and in society.
To even out the power the of the lower class to that of the upper class.
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A unilateral purpose takes less time, however takes all the blame.
When a state is threatened it may feel that a reason is good enough to go at it alone.
The British government did not want American colonists crossing the Appalachian Mountains and creating any type of problems with the French and Native. so they issued the Royal Proclamation of 1763, which declared the boundaries of the thirteen colonies as the Appalachian Mountains.