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.
EHT Comics 
The Jack Kirby and Vince Colletta THOR artwork was the high point of comic book art. Kirby created amazing layouts and Colletta brought his fine illustrative sensibilities to the stories. Tales of Asgard was eagerly anticipated each month. The cover you depicted is a classic.
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