Claim: The first issue in the U.S. edition of the second series of Fantastic Adventures, an American pulp fantasy and science fiction magazine, published from 1939 to 1953 by Ziff-Davis (an American publisher and Internet company founded in 1927), was released in March 1950.
Evidence: Fantastic Adventures was an American pulp fantasy and science fiction magazine, published from 1939 to 1953 by Ziff-Davis. Ziff Davis, LLC, known as Ziff Davis (ZD), is an American publisher and Internet company founded in 1927 by William Bernard Ziff Sr. and Bernard George Davis as a hobbyist print magazine publisher in Chicago, Illinois. The second series was published by Thorpe & Porter, in Leicester, and consisted of 24 undated issues, all but the first two of which were numbered. 1 (unnumbered) Mar 1950