Beijing (1950s) / Beijing’s inner and outer city wall
The city faced many invasions from the Mongols. In 1476 construction of an Outer city was proposed. Meanwhile, as the city expanded outward in the 1950s and ’60s, the ancient stone walls that encircled old Beijing were demolished as part of a sweeping modernization. Because of the need to develop and build the railway system, from 1953 the city walls began to dismantle. During the Cultural Revolution, the inner city wall was completely demolished.