The Berlin Wall, built by the East German government, divided the city between 1961 and 1989. Constructed to prevent people escaping from Soviet-controlled East Berlin to West Germany, an international commemoration will mark 20 years since its fall
1961: On 13 August, East German soldiers set up barbed wire barricades across Berlin to restrict travel between the eastern and western parts of the city. West Berlin citizens watch as the work is carried out
Photograph: AP
The Guardian
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