The fall of Rome
Rome fell because economics. when the economy started to fall the people started to riot. then the germanium people invaded them and since the roman army was weak from fighting off the riots they couldn't old them off and they kidnapped the empress. Then the fall fall of Rome eventually came.
The us economy is the same as the roman economy because we are the richest country in the world and so was rome. all that needs to happen to us to make us like rome is we need an economic downfall. once this happens are country will probably start shutting down just like rome.