A 2019 art installation atop Le Corbusier’s Cité Radieuse building in Marseille, France, produced a working Bat Signal. [Artist: A. Israel / Photo: S. Aboudaram, We Are Content(s)]
By the beginning of 1942, most of the elements of the Batman mythos had been established in Detective Comics and Batman. He had his characteristic cowled costume, utility belt, “batarangs,” sidekick Robin and bat-themed vehicles. But one of his most recognizable devices had not yet appeared: the Bat Signal. In the lead story in the February 1942 Detective Comics, “The Case of the Costume-Clad Killers,” for the first time the Gotham City police send for Batman by using this dramatic new method. “Suddenly,” reads the narration at the top of the comics panel, “a gigantic cone of light pierces the dusk of day and etches an eerie symbol against a dark cloud—the silhouette of a Giant Bat!”