Holocaust Remembrance Day: "in Israel, many of whom had fought in the ghettos or as partisans, wanted to commemorate the beginning of the Warsaw Ghetto Uprising - April 19, 1943. But this date on the Hebrew calendar is the 14th of Nissan - the day before Passover, a very important and happy holiday. Orthodox Jews objected to this date.
For two years, the date was debated. Finally, in 1950, compromises and bargaining began. The 27th of Nissan was chosen, which falls beyond Passover but within the time span of the Warsaw Ghetto Uprising. Orthodox Jews still did not like this date because it was a day of mourning within the traditionally happy month of Nissan. As a final effort to compromise, it was decided that if the 27th of Nissan"
'via Blog this'