On January 18, 1871, 150 years ago, Wilhelm I. was proclaimed as German emperor in the magnificent Hall of Mirrors at the Palace of Versailles, once the seat of government of the 'Sun King' Louis XIV, was a national symbol – and the proclamation thus a show of power against France, a triumphant act in the hall of the 357 mirrors. The documentation also tells Versailles as a place of German history.