The League of Nations did not do as well as it could have because the United States did not participate in it.
Answer:
Zoroastrianism made state religion under the Sassanian Empire.
Explantion; Jewish, Christianity and Muslim religion all have a similar doctrine. They all are monotheistic and worship the same God. The difference between Jewish and Christianity is that Jewish people do not believe that Jesus Christ is the Messiah and are still waiting for the coming of the savior.
Dynastic cycle is an important political theory in Chinese history. According to this theory, every dynasty goes through a culture cycle. A new ruler unites China, founds a new dynasty, and gains the Mandate of Heaven.