International Holocaust Memorial Day is held every January 27th, the day in 1945 that Auschwitz concentration camp was liberated as the Red Army advanced through Poland.
The organised murder of six million Jews by Nazi Germany was largely perpetrated in Central and Eastern Europe, which was occupied, ruled and administered by Nazi Germany directly, or indirectly via allied governments in Bulgaria, Croatia, Hungary, Romania and Slovakia. Bulgaria was the only country allied to Germany that did not deport its Jewish citizens to the murderous concentration camps built by the Nazis in occupied Poland.
There are several organisations dedicated to remembering and reviving Jewish life in Central Europe. Jewish Heritage Europe is a London-based web portal to news, information and resources concerning Jewish monuments and heritage sites all over Europe, including Central and Eastern Europe. And Centropa is a non-profit, Jewish historical institute with offices in Vienna, Budapest and Hamburg that is dedicated to preserving 20th century Jewish family stories and photos from Central and Eastern Europe, and disseminating these stories and photos through films, books and exhibitions. This is one of their films.