Tianjin is the largest coastal city in northern China. In terms of urban population, Tianjin is the fourth largest in China, after Shanghai, Beijing, and Guangzhou. In terms of administrative area population, Tianjin ranks fifth in Mainland China. The walled city of Tianjin was built in 1404. As a treaty port since 1860, Tianjin has been a major seaport and gateway to Beijing. During the Boxer Rebellion the city was the seat of the Tianjin Provisional Government. Under the Qing dynasty and the Republic of China, Tianjin became one of the largest cities in the region. At that time, numerous European-style
New energy vehicles in China become the world's all-time second largest plug-in electric passenger car manufacturer with more than 171,000 units delivered in China since 2008. BYD Auto was the world's top selling plug-in car manufacturer for a second year in a row with more than 100,000 units delivered in China in 2016, up 64% from 2015, and ahead of Tesla by about 30,000 units. However, in terms of sales revenue, Tesla ranked ahead with from its electric car sales in 2016, while BYD sales totaled from its electric car division. Cumulative sales of domestically built new energy vehicles in China totaled 951,447 units between