The two main sources are Maps and Artifacts
Iraq
Western Asia situated within the Tigris–Euphrates river system, in modern days roughly corresponding to most of Iraq. It also includes parts of Kuwait Saudi Arabia and Syria. Mesopotamia was dominated by the Sumerians and the Akkadians. Mesopotamia is also the site of the earliest developments of the Neolithic Revolution
Rome is located in Italy, Europe
Invasions by Barbarian tribes. ...
Economic troubles and overreliance on slave labor. ...
The rise of the Eastern Empire. ...
The most important reason for the collapse of Rome was the failure to actually integrate what they conquered. When Roman soldiers conquered new lands, it was rare that they ever attempted to force their culture, ideals, or laws upon the natives and barbarians. Thus, when the Empire began suffering internal struggles, the natives they had conquered decided to take action, which lead to the swift collapse by barbarian invasion from all sides. It's hard to pick a LEAST important reason, seeing that there were many of them, but I suppose a contender would most likely be the common refusal of the Empire to even acknowledge that barbarians were rising. On the outer edges of their territory, in places like Gaul and Morocco, the Roman government was reluctant to even recognize the threat of the barbarians, thinking that even accepting that these barbarians were causing trouble would weaken their prestige in the public eye.
Answer:
OK I'm going to write a nice one plsssss