In the final phases of the Chinese Civil War, the People's Liberation Army seized control of the city peacefully on 31 January 1949 in the course of the Pingjin Campaign. On 1 October that year, Mao Zedong announced the creation of the People's Republic of China from atop Tian'anmen. He restored the name of the city, as the new capital, to Beijing,[67] a decision that had been reached by the Chinese People's Political Consultative Conference just a few days earlier.
In the 1950s, the city began to expand beyond the old walled city and its surrounding neighborhoods, with heavy industries in the west and residential neighborhoods in the north. Many areas of the Beijing city wall were torn down in the 1960s to make way for the construction of the Beijing Subway and the 2nd Ring Road.