Q:
A: What is your question? What is it? The short answer is Its the holiday that discusses when the Jews leave Egypt after being enslaved by the pharoahs. Watch the movie "The Ten Commandments". It will give you a good start about it. The term "Passover" originates when G-d Passed over the houses that had their doors were smeared with blood. This spared those living within the tenth and final plague: Slaying of the First Born. Hope this helps.