The answer is c, mccarthyism. though it isnt a period of history, but rather a mindset.
Roman law can be seen today in our governmental structure, down to the very architecture that makes up most federal buildings.
A) Did it on Edu ! HOPE YOUR HAPPY
Native Americans taught the French how to fight in the American backwoods.
With more than one ruler the empire would be better suited to protect itself from threats from barbarians and persia