A great empire was not built in a day, just as a great empire did not decline in a day.
The Roman Empire, the greatest ancient empire in western history, finally collapsed after centuries of suffering.
In 27 BC, the Senate officially conferred the title of Octavian Augustus (Emperor), and the Roman Empire was formally established. After that, the empire continued to develop until the death of Trajan the Great in 1 17, when the empire reached its peak and its territory was unprecedented.
But just as no great man can stand at the peak of history forever, an empire can't be forever strong.
After the death of Trajan the Great, the national strength of the empire began to decline, but under the leadership of the following three outstanding emperors (not including the common emperor of Aurelius), the empire still tried its best to maintain its prosperity and strength, but Kyle? The death of Emperor Aurelius (the old emperor in the movie Gladiator) ended the last golden age of Rome.
The stupidity of comrades led to another great civil war in imperial history.
Cé sar Verus, the winner of the civil war in 193 A.D. and commander of the Danube Military Region, proclaimed himself emperor in Rome. The emperor led Rome into the troubled third century.
Although Cesar Verus tried his best to cheer up, the decline of the empire was unstoppable. Finally, Cesar Verus died in a humble military camp in England, and the empire behind him was facing an increasingly serious economic, financial, social and political crisis.
Although the demise of the Roman Empire was directly related to barbarian invasion, barbarian invasion was not the fundamental reason for the demise of the Empire.
Those terrible barbarians in the late empire, such as Huns, Goths, Wanda and so on. It's actually not very powerful. Barbarians like them, such as Dacia, have invaded the empire for centuries, but none of them succeeded.
The root cause of the demise of the Roman Empire should be attributed to the constantly emerging weak and fatuous rulers and warlords who attacked each other. The Roman Empire finally consumed its strength in the constant civil war.