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
Superman Siegel and Shuster were, at the time, negotiating a deal with the McClure Newspaper Syndicate for Superman. In early January, Siegel had a three-way telephone conversation with Liebowitz and an employee of McClure named Max Gaines. Gaines informed Siegel that McClure had rejected Superman, and asked if he could forward their Superman strips to Liebowitz so that Liebowitz could consider them for "Action Comics". Siegel agreed. Liebowitz and his colleagues were impressed by the strips, and they asked Siegel and Shuster to develop the strips into 13 pages for "Action Comics". Having grown tired of rejections, Siegel and Shuster accepted