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In page West Berlin:

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East Germany assigned different legal statuses to East Germans, East Berliners, West Germans, and West Berliners, as well as citizens from other countries in the world. Until 1990 East Germany designated each Border crossings in East Berlin for certain categories of persons, with only one street checkpoint being open simultaneously for West Berliners and West Germans (Bornholmer Straße) and Berlin Friedrichstraße railway station being open for all travellers.[citation needed]