The children of the forest were the first people in what is now known as Westeros. The First Men came to Westeros and warred with them, cutting down their trees and so on. The children flooded the neck, turned trees into warriors (like Ents I suppose) but ultimately were losing the war to the bigger, stronger, better equipped men.
Eventually they agreed to a pact where the men took the open lands and the children took the forests. The First Men took on the gods of the children, now called the Old Gods. The Gods of the North.
Then the Andals came, ruined the lot of it, and introduced the Seven Gods (Mother, Stranger, Maiden, Crone, etc).
Eventually they agreed to a pact where the men took the open lands and the children took the forests. The First Men took on the gods of the children, now called the Old Gods. The Gods of the North.
Then the Andals came, ruined the lot of it, and introduced the Seven Gods (Mother, Stranger, Maiden, Crone, etc).