Asgard is a location in the Marvel Universe and is based on the Asgard of Norse Mythology. Asgard itself is a realm but the capital city also shares the name.
History[]
The specifics of the history of Asgard are somewhat murky in many respects. Tales say that before Asgard there was "nothing" until the worlds Niflhelm and Muspelheim came into being on the opposite sides of the void. The ice giant Ymir ruled as the king of giants and his giant cow Auðumbla licked the first Asgardian, Buri, out of the ice.