
An urban area is the answer.

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Answer:
Africans organized their societies around the family unit, and gold supply often dictated which society held the most power—until the start of the Atlantic slave trade.
The beginning of the Atlantic slave trade in the late 1400s disrupted African societal structure as Europeans infiltrated the West African coastline, drawing people from the center of the continent to be sold into slavery.
New sugar and tobacco plantations in the Americas and Caribbean heightened the demand for enslaved people, ultimately forcing a total of 12.5 million Africans across the Atlantic and into slavery.
Explanation:
well to be honest if we had advateges why is donald trump president................
It spread through the Roman empire
The Supremacy Clause (Article 6, Clause two) declares that the Constitution is the "supreme law of the land". It establishes that federal laws rule over state laws. This ensures that there will be no disagreement between the state and the national government over who has more authority. Federalism is a system of government where the power is shared between the state and national government, but this does not mean that they are equal. The national government will be "supreme".