That's YOUR assignment, which no one here will write for you.
What are your questions about YOUR assignment?
Describe how the Sui and the Tang were able to exert power and harness the social and economic vitality of the country. Think about the conditions that facilitated the rise of these two dynasties--and why did this not occur earlier.
3 answers
http://www.chinahighlights.com/travelguide/china-history/the-sui-dynasty.htm
http://www.chinahighlights.com/travelguide/china-history/the-tang-dynasty.htm
http://www.chinahighlights.com/travelguide/china-history/the-tang-dynasty.htm
Idk the answer