Since people speicilize in a certain thing it causes isolation since they want to do good at that certain area or thing they are specializing in.
Answer:
7000–4500 B.C. (Neolithic) The earliest permanent settlements belong to this period.
Answer:
Explanation:
Although many of the Founding Fathers acknowledged that slavery violated the core American Revolutionary ideal of liberty, their simultaneous commitment to private property rights, principles of limited government, and intersectional harmony prevented them from making a bold move against slavery.