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
Religion in China They also opposed the opium trade and brought treatment to many who were addicted. Some of the early leaders of the early republic (1912–49), such as Sun Yat-sen, were converts to Christianity and were influenced by its teachings. By 1921, Harbin, Manchuria's largest city, had a Russian population of around 100,000, constituting a large part of Christianity in the city. Christianity, especially in its Protestant form, gained momentum in China between the 1980s and the 1990s, but, in the following years, folk religion recovered more rapidly and in greater numbers than Christianity (or Buddhism). The scholar Richard Madsen noted that