Here is the answer of the given question above.
Wendi is known to be Yang Jian who founded the Sui Dynasty. He did many things to make the Chinese feel more unified. He was the one who rebuilt parts of the Great Wall of China to keep out invaders. He was also the one who began building the Grand Canal wherein he made thousands of peasants labored for five years just to dig the canal and half of them died during the labor. Because of these projects, he raised the taxes of the Chinese people which become the main reason why they revolted and the dynasty fell. Hope this answer helps.
