It was 70 years ago today that Auschwitz was liberated by the Soviet Army (one of the few good things to have happened under Stalin).
As only a few thousand detainees remained in the camp, the liberation was of little help to those who had been evacuated under orders by Himmler earlier in the month and sent on a march to their deaths. Nevertheless, the liberation marked the end of a horror which saw more than 1 million people lose their lives, a majority of them Jews.
When I was a boy growing up in Thunder Bay, I attended Shaarey Shomayim Synagogue. Several of the congregants had survived Auschwitz including the man who served as our cantor. You could hear the horror in his voice every time he sang during Shabbat services. I also remember seeing that tatoo on his arm.