Shanghai (上海), is China's most populous city situated on the eastern coast of the country, a port on the estuary of the Yangtze River.
Until World War II, Shanghai contained areas of British, French, and American settlement.
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The United States military spends about $81 billion a year to protect oil supplies around the world and keep fossil fuels flowing into American gas stations, according to new analysis.
Securing America's Future Energy, a think tank that advocates for reducing U.S. dependence on oil, released the study the same day President Donald Trump claimed that some Middle Eastern countries are pushing up crude prices while benefiting from U.S. military protection.
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Probably because in the south, the farmers needed help with gathering alot of crops, such as cotton. In the north, they didn't have farms, so they didn't need slaves.