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In page Berlin Wall:

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East Berliners and East Germans could not, at first, travel to West Berlin or West Germany at all. This regulation remained in force essentially until the fall of the Wall, but over the years several exceptions to these rules were introduced, the most significant being:

  • Visits of relatives for important family matters
  • People who had to travel to the West for professional reasons (for example, artists, truck drivers, musicians, writers, etc.)[citation needed]