C. Japan began establishing an empire....
They were found 50 to 56 million years ago, and they originated in North America
Han ethnic group in China is an Easter Asian ethnic group and nation. They conform more than a 92% of Chinese population, that is why it is the largest ethnic group (over 1.3 billion people)
This Dynasty dated from 206 and it represented a 19% of the world´s people.
Answer: The Roman Empire converted them
Explanation: When the Roman Empire took over, they converted their religion, changing their Greek gods into Gods of the empire, then eventually Christianity became a mass religion and many polytheistic and pagan individuals were forced into Christianity.
The Greek gods are still believed in by some people, called "Hellenic Pagans". If you believe in the Greek gods still, I recommend checking it out.