Answer:
The Mandate of Heaven was created under the Zhou Dynasty. According to the Mandate of Heaven, China could only have one ruler at a time. The one ruler was considered to be the 'son of Heaven' and he was made the ruler with approval of Gods.
If a rule was not fair in his duties, then it was considered that God might have taken back His approval. Also, conditions like famine and natural disasters were considered that the Gods were unhappy with the ruler.
They did this so when the Mongols took over China, the Chinese could not gain high power and over throw the mongols.
The Germanic General that seized control of Rome was Odoacer
Susan seems to be exhibiting hyperactivity or anxiety.