Superman: Whatever Happened to the Man of Tomorrow? reference to one of the nicknames of Superman as the "Man of Tomorrow", and was later again used in the title of another Superman . The comic book, "Action Comics" #1, published in April 1938 by "National Allied Publications" (later renamed DC Comics), marked the first publication of the character of Superman created by Jerry Siegel and Joe Shuster. The comic quickly became a success, and its editor soon realized that it was because of the popularity of the character. In an unprecedented move at the time, National Allied Publications introduced a second comic book, "Superman", exclusively featuring the popular
Superman and Lois Lane saves her. From then on, Clark was established as a shy man attracted to Lois, while she was interested in his heroic alter ego, Superman. This remained the status quo in the comics for decades, though Lois did warm up to Clark for the most part; yet their relationship couldn't really advance with Lois left out of Clark's secret and the Clark Kent persona is a disguise. As early as the 1940s, Lois began to suspect that Clark Kent was Superman, the first such story appears in "Superman" #17 (July–August 1942) in a story titled "Man or Superman" by Jerry