Norse mythology originated in Northern Europe among Vikings in Norway, Finland, and Sweden before Christianity. It featured a harsh, cold climate and sea-based culture. The Norse believed in wyrd or fate. Their creation myths involved primordial lands like Muspelheim, Niflheim, and Ginnungagap, as well as early giants like Ymir. The first gods, including Odin, Vili, and Ve, created humans from trees. Yggdrasil, the world tree, connected realms like Asgard, Midgard, and Niflheim. Major gods included Odin, Thor, Balder, Frigg, Frey, and Freya. Loki was a