This image shows the devastation of the westerns roman empire when it fell,and how great it was before it fell, the western roman empire fell in 476 C.E.
I choose the first image because if you want to rule Rome you need to have a loyal army backing you up. I choose the second image because if you want to rule Rome you need to have the senate on your side so they don't assassinate you. I choose the third image because to rule Rome you need to have the ability to speak so if things get turned against you can get it back in your favorer. I choose the last image because if you want to rule Rome you need to know your boarders and how to keep them the same or expand them.
The first reason why Rome fell was because of barbarian invasions. This caused Rome to fall because the barbarians kept destroying Rome and eventually Rome ran out of money to repair it. The second reason is the weakening of the legions. This caused the fall of Rome because with weaker legions they could not defend as well from invasions. The third reason why Rome fell was because overexpansion and military overspending. This caused Rome to fall because of the size of the empire Rome had to put to much money into the military which caused less money to care for Rome, causing them to fall. The fourth reason why Rome fell was Christianity becoming the main religion. This caused Rome to fall because Rome started putting to much money into the churches not allowing enough to protect itself or provide easy living for the citizens of Rome.
The western Roman empire fell before the eastern Roman empire which was later called the Byzantine empire. The Eastern Roman empire did not fall until 1453 AD about a thousand years later then the western Roman empire.
This map above shows the spread of Christianity.
This is Constantine his affect on Rome was becoming the first Christian emperor.
This is Theodosius. His impact on the Roman empire was making Christianity the main religion of Rome.