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  Zhang Qian noticed that there were Chinese goods while traveling in China. From this information, he deduced that China could establish trade relationships with Bactria.
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  The earliest Buddhists in China were Indian, Parthian, and central Asian merchants. Buddhism did not attract Chinese people until later in the fifth century C.E..
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  The Yellow Turban rebellion brought the fall of the Han dynasty.
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  Gregory the Wonderworker helped spread Christianity in Anatolia, Syria
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  (216-272) Mani was a dualist, he believed the world was a site of cosmic struggle between good and evil. He traveled the silk road to spread Manichaeism, which caused an explosive expansion of the faith.
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  Due to epidemic diseases, political problems, and the Yellow Turban rebellion, the Han dynasty collapsed and the empire was divided into three kingdoms.
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  (284-305)
 Diocletian tried to fix the problems that the epidemics caused by dividing the empire so they could be more self-sufficient.
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  (313-337)
 Like Diocletian, Constantine divided the empire to fix the problems, however, it never seemed to work. He also built Constantinople which became the capital of Rome.
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  Constantine promoted Christianity and allowed Christians to practice the faith openly. It later became the official religion in Rome.
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  The patriarchs and bishops assembled in church councils to determine which side of the theological arguments prevailed as official doctrine.
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  The Germanic migrations, invasions of the Huns, and epidemic diseases brought the fall of the Roman Empire.