Superman the offer. Siegel and Shuster submitted their work in late February and were paid $130 (AFI $) for those 13 pages. In early March they signed a contract (at Liebowitz's request) in which they released the copyright for Superman to Detective Comics, Inc. This was normal practice in the business, and Siegel and Shuster had given away the copyrights to their previous works as well. Superman was finally published on April 18, 1938, in the first issue of "Action Comics". The magazine sold very well, and feedback from readers showed it was because of Superman. Siegel and Shuster read pulp
For Tomorrow (comics) an alternate universe version of the character. The "real" General Zod appears for the "first" time in the "" arc, which ran in "Action Comics" in 2006. The idea of Superman moving to a Peru jungle to construct a new Fortress of Solitude is a major story arc elaborated on prior to the events of "Identity Crisis" and "Infinite Crisis". He does not return to the Arctic Circle to rebuild the destroyed Fortress until the "One Year Later" arc "". In addition, Equus returns in "Countdown to Final Crisis" #36 (2007), in which he is trying to instigate a strike