The rule of the first emperor was brutal. In his quest to fully unite the nation and secure it he wiped out existing states and their cultures, massacred many, worked people to death on large projects like the great wall. read more
The next dynasty Han was taught a lot by the lesson,the emperors and officers remembered why the dynasty could come out for a long time. So they reminded each others to restrain their desire of having more land ,more money,more women,more houses by exploiting farmers ,this made that their reign was tolerable to the farmers for a long time. read more