See a Magnum Photos gallery on Passover.
The story of Passover: It's a long time ago. We're slaves in Egypt. Pharaoh is a nightmare. We cry out for help. God brings plagues upon the Egyptians. We escape, bake some matzoh. God parts the Red Sea. We make it through; the Egyptians aren't so lucky. We wander 40 years in the desert, eat manna, get the Torah, wind up in Israel, get a new temple, enjoy several years without being persecuted again. (Let brisket cool now.)
The 10 Plagues: Blood, Frogs, Lice—you name it.
The singing of "Dayenu":
If God had gotten us out of Egypt and not punished our enemies, it would've been enough. If he'd punished our enemies and not parted the Red Sea, it would've been enough.
If he'd parted the Red Sea—(Remove gefilte fish from refrigerator now.)
Eat matzoh. Drink more wine. Slouch.
Thanks again, God, for everything.