It all started when Gaea (Earth) and Uranus (sky) was formed by what is called, Chaos
There, it all started, twelve Titans were born from Uranus and Gaea. There were also cyclops and monsters with hundreds of arms and fifty heads. They were thrown to Tartarus and Gaea would tell one of her kids to seek revenge and save their brothers.
Only one decided to do it, his name was Kronos. He had a weapon to defeat his father and save all his brothers, so he went on to battle him and banish him from the universe.
I will defeat you father and become powerful! MUAHAHAHAHAHA
Kronos wen't to defeat his father, Uranus and free his brothers. He went on a battle and banished him, altough he did this, he was cruel. He also named his father as the lord of the universe.
Lets throw him down Tartarus and save our uncles!
You are not the sky, you are now named, the lord of the universe, and I will not let my brothers free, THEY ARE UGLY!!
Kronos was cruel and didn't rescue his brothers in Tartarus. He was married to Rhea and had many kids who were gods. But Kronos was scared one of them will defeat him just like he defeated his father. So Kronos ate his kids.
num num num! HA, now you can't over throw me like I did to my father!
Kronos don't they are your kids!
Not far away, Rhea saved Zeus from being eaten so she gave Kronos a rock wrapped instead, then Zeus grew in a cave where when he cried, his guards made noise so Kronos won't hear. he was also in good care from a goat.
It is time for me to save my brothers and defeat my father.
When Rhea gave Kronos a trick liquid, Kronos drank it and Kronos barfed all his brother and sister who were grown up, then, they defeted their father after a war of 10 years. Then, the cyclops gave the "big 3" symbols and powers. THE END!