On January 27th, 1945, Soviet troops liberated Auschwitz, the most notorious of the Nazi concentration camps.
OVer one million people died at Auschwitz, somewhere around 90% of those were Jewish.
In 2005, the United Nations declared Jan 27th to be Holocaust Remembrance Day, to commemorate the wanton murder of Europe's Jews (six million), the Roma and Sinti (2 million), people with disabilities, gays, Jehovah's Witnesses, and many others.
We need to remember. Many of the survivors of the Holocaust are gone now. We owe to those who survived and those who did not to remember. Too many people deny that the Holocaust ever happened. Others question its relevance.
The Holocaust reminds us how easy it is for us to lash out against others in hatred and jealousy. We must remember.