Thursday is Holocaust Martyrs' and Heroes' Remembrance Day 2008 (Yom HaShoah in Hebrew), a day that commemorates the martyrs and heroes who died under the Nazis. There is a special ceremony at Yad VaShem, the Jerusalem Holocaust Museum. A siren is sounded in Israel and everyone stands for two minutes of silence in memory of those murdered. All Jewish places of entertainment are closed in Israel. In an effort to remember the Holocaust today, you can read this Letter From Dachau (youtube.com) written by an American soldier who participated in the camp's liberation.