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
The Death of Superman arc references Siegel and Shuster's first Superman story, "The Reign of the Superman". It crosses into the larger DC Universe, with "Green Lantern" #46 (October 1993) featuring a tie-in story. Despite the gap between the releases of "Funeral for a Friend" and "Reign of the Supermen!", no time passed within the continuity of the comics. "The Death of Superman" concluded in October 1993 with "The Adventures of Superman" #505, in which Superman returns to Metropolis. Doomsday emerges from an underground bunker and encounters the Justice League International. He easily defeats them, but Superman arrives and the two fight across America.