Heimdall is the handsome gold-toothed guardian of Bifrost, the rainbow bridge leading to Asgard, the home of the Gods.
He required less sleep than a bird, could see 100 leagues, and could hear grass growing in the meadows and wool growing on sheep. Heimdall kept the “ringing” horn, Gjallarhorn, which could be heard throughout heaven, earth, and the lower world; it was believed that he would sound the horn to summon the gods when their enemies, the giants, drew near at the Ragnarok, the end of the world of gods and men. When that time came, Heimdall and his enemy Loki would slay each other.
As the god Rig (“ruler”), Heimdall created the three races of mankind: the thralls, the karls, and the jarls.