But Hankou only has a history of (__)years, in the Ming Dynasty, the Han River changed its course and separated Hankou from (__)Hankou became a town formally, but it developed very fast, as far as 1740’s, it was very prosperous and regarded as one of the most famous four towns of China, the other three ones were (__) of Henan Province, (__) of Jiangxi Province and (__)of Guangdong Province.