Yom HaZikaron laShoah ve-laG’vurah (יום הזיכרון לשואה ולגבורה; "Holocaust and Heroism Remembrance Day"), known colloquially in Israel and abroad as Yom HaShoah (יום השואה) and in English as Holocaust Remembrance Day, or Holocaust Day, is observed as Israel’s day of commemoration for the approximately six million Jews and five million others who perished in the Holocaust as a result of the actions carried out by Nazi Germany and its accessories, and for the Jewish resistance in that period. In Israel, it is a national memorial day and public holiday. It was inaugurated on 1953, anchored by a law signed by the Prime Minister of Israel David Ben-Gurion and the President of Israel Yitzhak Ben-Zvi. It is held on the 27th of Nisan (April/May), unless the 27th would be adjacent to Shabbat, in which case the date is shifted by a day.
It occurs on this day on the Hebrew calendar (and thus varies on which day it is commemorated on the Gregorian calendar) to coincide with the anniversary of the Warsaw Ghetto uprising in Poland. As the Nazi regime began its reign of terror, a large contingency of Jewish men rebelled against the forced removal of Jewish men, women and children from their homes in the Polish capital. Little did they know then that it was just the beginning of the horror of the systematic attempt to annihilate the Jewish people.
Never forget...never again...is the motto verbalized on this day every year.
All day, every day, we are commanded to Sha'alu shalom Yerushalayim - pray for the peace of Jerusalem!!