Thor (comics)
Thor, a founding member of the superhero group the Avengers, often battles his evil adoptive brother Loki, a Marvel character adapted from the Norse god of mischief. He is among Marvel's most powerful superheroes. Many recurring characters in his stories are based on Norse Mythology. Apart from this main superhero, Marvel features a number of characters based on him.
Loki
Loki's origins and role in Norse mythology have been much debated by scholars. In 1835, Jacob Grimm was first to produce a major theory about Loki, in which he advanced the notion of Loki as a "god of fire". In 1889, Sophus Bugge theorized Loki to be variant of Lucifer of Christianity, an element of Bugge's larger effort to find a basis of Christianity in Norse mythology. After World War II, four scholarly theories dominated. The first of the four theories is that of Folke Ström, who in 1956 concluded that Loki is a hypostasis of the god Odin. In 1959, Jan de Vries theorized that Loki is a typical example of a trickster figure. In 1961, by way of excluding all non-Scandinavian mythological parallels in her analysis, Anna Birgitta Rooth concluded that Loki was originally a spider. Anne Holtsmark, writing in 1962, concluded that no conclusion could be made about Loki.