Wonder Stories began its run in June 1930, the result of merging two titles Science Wonder Stories and Air Wonder Stories.
Although the reason for this amalgamation is uncertain, it was probably due to a variety of reasons:
- The owner Hugo Gernsback needed to create space for a new title Aviation Mechanics magazine
- Poor sales of both titles led to a need for an economy scale
- Air Wonder Stories was too small a niche genre
- Science Wonder Stories implied a "scientific periodical rather than a fiction magazine"
In 1936 Gernsback sold Wonder Stories to Ned Pines, who renamed it Thrilling Wonder Stories. This title then ran for nearly twenty years until the final issue at the end of 1955.