Someone, somewhere determined that on April 18, 1938 -- it was a Monday, if you're interested -- Action Comics #1 arrived on newsstands, delivering riveting tales of Tex Thompson, Zatara the Master Magician and Scooby the Five-Star Reporter, and oh, yeah, introducing the world to Superman, Lois Lane and Krypton. It's an issue that essentially gave birth to the superhero genre, and set the course of the fledgling comic-book industry.
Although DC Comics doesn't appear to be marking the 75th anniversary of the Man of Steel, the city where teenagers Jerry Siegel and Joe Shuster created the character is, beginning in about an hour. At 1 p.m. ET, Cleveland Mayor Frank G. Jackson will present the Siegel and Shuster Society with a proclamation on the steps of City Hall declaring today "Superman Day."
To commemorate the event, a Superman flag will be raised, and the lights on City Hall and the Terminal Tower (familiar to anyone how watched The Avengers) will be turned blue, red and yellow. In addition, Cleveland-Hopkins International Airport will have cupcakes for travelers, and a birthday card for the Last Son of Krypton at its recently installed Superman Welcoming Center.