The Bubonic plague and the raids by Vikings.
Answer: federalism, separation of powers, checks and balances, and the large and small states both treated equally.
Explanation:
The Constitution guarded against tyranny in ways such as having the federalism, separation of powers, checks and balances, and the large and small states both treated equally.
Answer: 9.7%
Explanation: I looked at the U.S. Census Bureau, Census of Population, 1850 to 2000, and the American Community Survey, 2010.
