Sleipnir is the eight-legged horse ridden primarily by the god Odin in Norse mythology. He is the son of the god Loki (in the form of a mare) and the stallion Svadilfari who belonged to the jötunn that built the walls of Asgard. In Iceland, the glacial canyon Ásbyrgi is known as Sleipnir’s Footprint in the horse’s honor.
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