Zeus is the king of the gods and lord of the sky. Before his birth, Kronos was told that one of his children would take over the throne like he had done to his own father, Ouranos. To prevent this, Kronos began to eat his children as soon as they were born. Rhea, his wife, couldn't stand by any longer and when she gave birth to Zeus, she replaced him with a rock that Kronos ate, then hid Zeus far away in a cave. When Zeus got older, he returned and tricked Kronos into throwing up his children with a mixture of wine and mustard. After all of Zeus' brothers and sisters were freed, the First Olympian War began.