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BSZ01055POL.jpg
The words 'Arbeit macht frei' ('Work makes free") over the gate to the Auschwitz-Birkenau Nazi concentration camp. It is estimated that between 1.1 and 1.5 million Jews, Poles, Roma and others were killed in Auschwitz-Birkenau during the Holocaust between 1940-1945. 27 January 2015 is the 70th anniversary of the liberation of Auschwitz-Birkenau.