1500 is a bit too many words. I say a few words, mainly because the past was a feudal society. After the Opium War, it became a semi-colonial and semi-closed social nature, so it was the starting point of modern history. After the defeat of the Opium War, China and Britain signed the treaty of nanking, and for the first time, the unequal land cession compensation treaty began to be semi-colonial and semi-fief, which started from modern history to the end of the founding of People's Republic of China (PRC) in 49.