Board Thread:Questions and Answers/@comment-5157293-20130324003807/@comment-61022-20130325221603

When it comes to the various pantheons they all have their own "origin" stories shrouded in myth blah-de-blah-blah... For the most part, most of the mythical origins are the beliefs of those who worshipped the various pantheons, but all myths tend to have a basis in truth.

All the pantheons that are active were in some way the product of Gaea after most of the first set of Elder Gods were slain by Demogorge. Gaea has a connection to every pantheon, and she is considered the "mother earth" goddess of pretty much every pantheon.

Much like the surviving Elder Gods (such as Set and Chthon) these godheads created their own dimensions to live in outside of the mortal realm but interacted heavily with the affairs of early man until just after humans started recording their own history, most of them severed their ties with the human race for various reasons. A lot of the western godheads (Such as the Olympians, and the Asgardians) withdrew from involvement due to the rise of Christianity in Europe.

I would suspect they also withdrew from Earth into their own realms for dear that they might also suffer the same fate as many of the Elder Gods before them, consumption by the Demogorge.