I want to know the answer to the following question:
During what years was Cao Xueqin alive?
All the background I'm provided with is that "One of the most famous works of Chinese literature, A Dream of Red Mansions by Cao Xueqin (1715–1763), was about the lives of noble women who passed their lives out of public sight within the walls of such mansions.". Is that enough to answer the question?