What is the Haggadah?

AISH RABBI: The Haggadah is a book that Jews read on the first night of Passover.  It tells about our slavery in Egypt and the miracles G-d did for us when freeing us.  The word haggadah means "telling," which comes from the Biblical command:  "And you shall tell your child on that day, saying: `G-d did (miracles) for me when I left Egypt so that I would fulfill the Torah's commandment."  (Shemot 13:8 and Rashi)