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
Health in China because of the policy and its elderly population (65+) will outgrow the working aged people. The elderly population in China is highly reliant on the working aged people for support and the number of dependents (children 0-14, adults 65+) are increasing compared to the number of working aged people. China's population is aging and the number of children born is less than the replacement rate. Smoking related illnesses killed 1.2 million in the People's Republic of China; however, the state tobacco monopoly, the China National Tobacco Corporation, supplies 7 to 10% of government revenues, as of 2011, 600 billion yuan,