What is the history of isis?

Isis is the goddess of magic and healing. She married Osiris (god of dead) and they had a son named Horus. Her other siblings are Seth (god of evil) and Nepthys (nature goddess). She is daugter of Nut (sky goddess) and Geb (earth god). She is a woman with a seat-shaped headdress. Some believed that her tears for her dead husband (Seth killed him) flood the Nile.