Shanghai - Wikipedia
Alternative names. Rise and golden age. Japanese invasion. Administrative divisions. Manufacturing. Free-trade zone. Education and research . Transportation. Expressways and roads. Parks and resorts. Air pollution. Environmental protection.
Shanghai (/SaeNG'haI/? Chinese pronunciation of Shang Hai, Standard Mandarin pronunciation of [saNG.xaI]) is one of four municipalities of China. [a] It is situated on the Yangtze River's southern estuary, where the Huangpu River flows through it. Shanghai, with a population of 24.89 millions as of 2021[update], is China's most populous urban area and the largest city in China. It has a greater GDP than the capital of East Asia. The Greater Shanghai metropolitan area (which includes Suzhou and Wuxi as well as Jiaxing, Jiaxing, Jiaxing and Zhoushan) had a nominal gross metropolitan product of 9.1 trillion RMB ($1.33 Trillion). Shanghai has been a major center for finance, economics and research. The Shanghai Pudong International Airport was ranked among the top 10 most busiest airports in the world by passenger traffic in 2019.  It is also one of two international airports that serve the Shanghai metropolitan region.
Shanghai was originally a fishing village, but it became a market town in 19th-century China. This was due to its favorable location and both domestic and international trade. After the First Opium War, five treaty ports were forced to open their doors to European trade. After the First Opium War, Shanghai International Settlement was established. The French Concession followed. It was a major financial and commercial hub in Asia during the 1930s. The city was also the location of the Battle of Shanghai during the Second Sino-Japanese War. With the 1949 communist takeover of the mainland, trade was restricted to socialist countries, and the city's influence worldwide declined.