In Norse mythology, Miðgarðr became applied to the wall around the world that the gods constructed from the eyebrows of the giant Ymir as a defense against the Jotuns who lived in Jotunheim, east of Manheimr, the "home of men", a word used to refer to the entire world.
According to the Eddas, Midgard will be destroyed at Ragnarök, the battle at the end of the world.