There Goes the Neighborhood

One instance in history that I have learned about where one type of people have come into a certain area or neighborhood is when the British invaded China in the mid 1800's.  The British Empire and China finally resolved issues, but Britain gained control of many costal Chinese cities  (This can be party seen in the World War II movie Empire of the Sun, which takes place about a century later).  Many British families and companies moved to the eastern seaboard of China, primarily in Shanghai and Hong Kong and set up spice, silk and precious metal companies, becoming extremely wealthy, and causing the British economy to  also improve, as the British citizens transferred their money back to their homeland.  Many Chinese citizens
became miners, laborers, and servants to the British, who had invaded the Chinese's land.  The Chinese also starting becoming second class citizens in their own land, who were treated very poorly, and were exploited by the British.  In the Chinese's point of view, this must have seemed pretty crazy, and probably made no sense at all to them, as they were in their own country, and the British were the immigrants, who then became the first class, rich citizens.  Only a few years ago, in 1997 did the "neighborhood" get transferred back under Chinese sovereignty, when the British gave Hong Kong, the last of Britain's Chinese colonies back to China.