This was known as the Freedom summer
It was an initiative to get as many African-Americans to vote as possible in the elections in Mississippi. The initiative was organized because they had historically been segregated and were not allowed to vote through various means even when they did have constitutional rights to do so, ever since the civil war.
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I hope this helps :)
The Karankawas, Tonkawas, and other local American Indians did not like the colonists living on their land and had raided the colony.
The constitution, slaves, white people, and more slaves
The Sahel was the last area in the northern parts of Africa, where vegetation can survive and where people were living at the time. Following the Sahel to the North one can find the Sahara desert which is a natural barrier that no invading force could trespass.