Norse mythology is a mythological system coming from the North Germanic Peoples and Old Norse religion. Norse (or Nordic or Scandinavian) mythology contains stories of gods, creatures and humans derived from various sources such as folk tales and the medieval scripts such as the Sagas and Eddas, as well as archaeological evidence such as rune stones. The myths include differing types of gods such as the Aesir and the Vanir, locations such as the Nine Worlds including Asgard and Vanaheim, and various elements to explain creation, the afterlife and the end of times in Ragnarok.