Thor debuted in the science fiction/fantasy anthology title Journey into Mystery #83 (cover-date Aug. 1962), and was created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller-plotter Jack Kirby. A different version of the mythological Thor had appeared previously in Venus #12-13 (Feb.-April 1951).
In a 1984 interview Kirby said “I did a version of Thor for D.C. in the Fifties before I did him for Marvel. I created Thor at Marvel because I was forever enamored of legends, which is why I knew about Balder, Heimdall, and Odin. I tried to update Thor and put him into a superhero costume, but he was still Thor.” And in a 1992 interview, Kirby said “[I] knew the Thor legends very well, but I wanted to modernize them. I felt that might be a new thing for comics, taking the old legends and modernizing them.”
Journey into Mystery was retitled Thor (per the indicia, or The Mighty Thor per most covers)with issue #126 (March 1966). “Tales of Asgard” was replaced by a five-page featurette starring the Inhumans from #146–152 (Nov. 1967 – May 1968), after which featurettes were dropped and the Thor stories expanded to Marvel’s then-standard 20-page length.
Journey into Mystery was initially published by Atlas Comics, then by its successor, Marvel Comics. Initially a horror comics anthology, it segued to giant-monster and science fiction stories in the late 1950s. Beginning with issue #83 (cover dated August 1962), it ran the superhero feature “The Mighty Thor“, created by writers Stan Lee and Larry Lieber and artist Jack Kirby, and inspired by the mythological Norsethunder god. The series, which was renamed for its superhero star with issue #126 (March 1966), has been revived three times: in the 1970s as a horror anthology, and in the 1990s and 2010s with characters from Marvel’s Thor mythos.
Loki has now claimed leadership of Asgard, and all must recognize that fact, even Thor. Finally winning the throne after a long sought out fight is not as sweet as he thought it would be. The ones that helped him now demand their due and the favors he promised them, including the death goddess Hela and seductress Lorelei. While he goes about his kingdom, he continually turns to his prisoners, Thor and Sif. Sif berates him for being jealous of her, and of cutting off her golden hair, only to bring about a greater love between her and Thor. While Balder reminds him that he has died and gone to Hel, while there, sees that there are parallel dimension incarnations of Thor, Loki, and Balder: Some different, yet all play the same roles. And Loki’s role is never to rule. Loki then turns to Karnilla, and agrees to free Balder into her care, in exchange for her to peer into a myriad other dimensions. There he sees confirmation of Balder’s words, all with Thor triumphant. Loki decides that Thor will indeed die at dawn by beheading. As he’s walking out of the dungeons, he runs into Fárbauti, his birth father. Loki decides to go against fate, and spare his brother as well as free him and Hela is revealed to be a failed illusion cast by Loki to convince him to kill his brother. Thor decides that when breaking free from his prison, he defeats his brother.