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 character and cast the more mild-mannered Clark Kent that is traditionally associated with the character. Clark is a reporter at the Metropolis newspaper the "Daily Planet", which allows him to keep track of events in which he might be able to help. Fellow reporter Lois Lane is often the object of Clark's affection. Lois's affection for Superman and rejection of Clark is a recurring theme in Superman comics and media adaptations. In the Modern Age comics Superman considers himself Clark Kent first and Superman second. Before the Crisis on Infinite Earths (i.e., DC comics published up to the early 1980s), the attitude was