The Roman contribution to the political theory which was adopted by the Founding Fathers was representative government. I hope that this is the answer that you were looking for.
Gaul was added to the roman empire under Caesar's h
B.
Using the bomb would demonstrate the power of the United States to the entire world.
The first sentence makes more sense. Id do the first one.
1. Invasions by Barbarian tribes
2. Economic troubles and overreliance on slave labor
3. The rise of the Eastern Empire
4. Overexpansion and military overspending
