The western empire had lost most of its political, religious, and economic power
Because they managed to lost the power to use their original language and replaced by another
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Answer:
On 12 April 1927, Chiang carried out a purge of thousands of suspected Communists and dissidents in Shanghai, and began large-scale massacres across the country collectively known as the "White Terror". During April, more than 12,000 people were killed in Shanghai.
The Barbarian attacks on Romepartially stemmed from a mass migration caused by the Huns' invasion of Europe in the late fourth century. When these Eurasian warriors rampaged through northern Europe, they drove many Germanic tribes to the borders of the Roman Empire.