Divided Berlin: The History of a Fractured City, 1945-1989

Divided Berlin is the subject of Berlin Divided City, 1945-1989 (2010), the volume edited by Philip Broadbent and Sabine Hake, professors of German studies in the United States, which brought together historians, planners and cultural critics to explain how a single city became two worlds and what that division left in its form, culture and memory. From the partition into sectors in 1945 to the building of the Wall in 1961 and its fall in 1989, Berlin was the epicentre of the Cold War, and the book argues that the division not only separated families and communities but produced two cities with different infrastructure, architecture, politics and daily lives, whose traces remain visible three decades after reunification.

Showcase of two systems: Stalinallee versus Interbau

The first axis is the city as showcase. Both blocs used Berlin to demonstrate the superiority of their system: the East raised the Stalinallee, today Karl-Marx-Allee, with Soviet-style palaces for workers, and the West answered with the Interbau exhibition of 1957, which brought Le Corbusier, Gropius and Niemeyer to the Hansaviertel to display the modern housing of the free world. The Marshall Plan and federal subsidies sustained a West Berlin without an economy of its own, while the East concentrated the GDR's resources in its capital; every square, tower and housing block was a political argument.

Daily life under the Wall: ghost stations, Stasi and Kreuzberg

The second axis is daily life under the Wall. Broadbent and his contributors document how the 1961 border cut metro lines, streets and water networks and created ghost stations through which Western trains passed without stopping; how East Berliners lived under Stasi surveillance and restrictions on mobility and consumption, and how West Berliners, exempt from military service and subsidised, formed an island city of students, artists and squatters in Kreuzberg beside the Wall. The physical separation produced a psychological one that survived the fall: the wall in the head, as it was called, that distinguished Ossis from Wessis.

Culture of the divided city: from Bowie to Alexanderplatz

The third axis is culture. West Berlin was a laboratory of counterculture, music and film, from Bowie in the 1970s to the punk scene and the films of Wim Wenders; East Berlin developed its own official and dissident culture, with Alexanderplatz and the Television Tower as icons and surveillance as its condition. The authors show that the divided city represented itself in literature, film and photography, and that this production is now part of its heritage as much as the remains of the Wall preserved on Bernauer Strasse or the East Side Gallery.

Reunification: Potsdamer Platz, voids, rents and memory

Reunification opened the chapter the book anticipates. The reconstruction of Potsdamer Platz over the death strip, the move of the federal government in 1999 and the demolition of the Palace of the Republic to rebuild the Royal Palace as the Humboldt Forum showed a city deciding which past to keep; cheap plots in the East drew artists and then investors, and Berlin went from poor but sexy, in its mayor's words in 2003, to one of the cities with the steepest rent rises in Europe and the expropriation referendum of 2021. Division left a city of voids that the market has filled in a generation.

The lesson of divided Berlin is that an urban border does not only separate: it produces two cities, and joining them again takes decades and decisions about memory, land and housing that planning cannot delegate to the market. For today's divided cities, from Nicosia to Jerusalem, and for those that fragment their neighbourhoods with invisible walls of income, Berlin shows the cost of dividing and the difficulty, and the possibility, of becoming one again.