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 energy vehicle sales since 2011, of which, 45.0% were sold in 2017, 29.3% in 2016, and 19.2% in 2015. , China had the world's largest fleet of light-duty plug-in electric vehicles with over 1.2 million units, after having overtook during 2016 both the U.S. and Europe in terms of cumulative sales. China has been the world's best-selling plug-in electric car market for three years running since 2015, with annual sales of more than 207,000 plug-in passenger cars in 2015; 320,000 in 2016; and record sales of about 600,000 passenger plug-in car sales in 2017, which accounted for about half of