The period of Chinese history

Would you argue that the period of Chinese history we have studied thus far is better characterized by unity or disunity? Give specific examples of both.

What was the relationship between Chinese and non-Chinese peoples from the early empires to the Ming? How did these interactions change overtime?

What are the major turning points in Chinese history up from the early empires up to the Ming Dynasty? Give at least two. Make an argument and support with evidence.