Auschwitz, the most infamous Nazi concentration camp, was liberated 74 years ago on 27th of January 1945, by Soviet troops. From early 1942 until late 1944, transport trains delivered victims from all over occupied Europe to the camp's gas chambers where they were killed with the pesticide Zyklon B. An estimated 1.3 million people were sent to the camp, of whom at least 1.1 million died.
Portugal's government remembered the victims and those men and women who prevented the extermination of people persecuted by the Nazi regime, reiterating Portugal's "firm commitment to keep alive the memory of the Holocaust, so that it does not happen again."