Over 3,000 years ago, a group of Jewish people called the Israelites were being kept in slavery by the ruler of Egypt called Pharaoh.
A man called Moses went to see Pharaoh many times to ask him to let them go, but Pharaoh refused.
Moses told him that if he did not release them, God would make plagues happen to the Egyptians. But Pharaoh did not listen, so the plagues came.
These ten plagues included the River Nile turning to blood, frogs covering the land, insect infestations, animals dying, the Egyptians getting skin diseases, complete darkness for three days and the first-born child in Egyptian families being killed by the angel of death.
God is said to have told Moses to tell the Israelites to paint lamb’s blood on their doorposts.
This way, the angel would know that Jewish people lived there. It would pass over that house and not kill the first-born child.
This is where the name Passover comes from.
For the last plague, even Pharaoh’s own son was killed. He summoned Moses and told him to take the Israelites out of Egypt immediately.
Finally, after more than 200 years of slavery, the Jewish people were free.
For Jewish people, Passover is a big celebration of freedom and life and the Passover celebrations last for eight days.
People clean their houses very carefully, to make sure they get rid of any crumbs of chametz.
These are crumbs from food that has been allowed to rise as they include substances like yeast, and includes normal bread - Jewish people aren’t allowed to eat things like this during Passover.
This is because the Israelites had to leave Egypt so quickly that they did not have time to let their bread rise, so food products that have risen are forbidden during Passover.