Today, Tuesday January 27th, is International Holocaust Remembrance Day. It has been 70 years since the Red Army liberated Auschwitz-Birkenau on January 27, 1945.
Auschwitz is actually more than just one camp. At its peak it included a network of dozens of camps all built and operated during World War II by Hitler's Third Reich in Silesia in occupied Poland. Auschwitz I and nearby Auschwitz II-Birkenau were the two main camps.