Cronus is the youngest of the 12
original Titans. He is also known in some myths as the god of time and
agriculture. He knew he was going to become the leader of the Titans,
so he dispatched and then married Rhea.
When they started having children, Cronus swallowed them because he was
afraid they would take his throne. He swallowed Hades,
Demeter, Poseidon and Hestia. When Rhea had Zeus on Crete, she wrapped a
rock in baby clothes and gave it to Cronus to swallow. Cronus swallowed
the rock thinking it was Zeus. When Zeus grew up he gave Cronus an emetic
and he threw up all of Zeus's brothers and sisters. Afterwards Zeus
killed Cronus. Then he assumed his possession of king of the gods.
the second ruler of the universe