were members Swamp Thing #1 (1972): the first adventure of Alec Holland, the Swamp Thing. The story won the 1972 Shazam Award for Best Original Story. Justice League of America #244 and Infinity, Inc. #19 (1985): the final team-up of the Justice League and the Justice Society before Earth-One and Earth-Two are merged. Crisis on Infinite Earths #10 (1986): The issue in which Earth-One, Earth-Two, Earth-Four (the home of the Charlton Comics heroes), Earth-S (the home of the Fawcett Comics heroes), and Earth-X (the home of the Quality Comics heroes) were combined into one reality, hereafter known as New Earth. DC Comics Presents #97 (1986): "Phantom Zone: The Final Chapter" The last official Earth-One story. Superman #423 and Action Comics #583 (1986): "Whatever Happened to the Man of Tomorrow?": The last story of the Superman of Earth-One, though it is technically classified as an Imaginary Story and not an official Earth-One story. It features cameos by several other Earth-One heroes. Destruction Crisis on Infinite Earths (1985–1986) was an effort by DC Comics to clean up their continuity, resulting in the multiple universes, including that of Earth-One, combining into one. This involved the destruction of the multiverse, including Earth-One and the first appearance of the post-Crisis Earth. Post-52 version At the end of the Infinite Crisis limited series, the realigned world is called "New Earth". There are now 52 universes: "New Earth" (aka Earth-0), and Earths-1 to 51. In the final issue of the 52 weekly series, it is revealed that fifty-two duplicate worlds have been created and all but New Earth have been altered from the original incarnation. Earth-1 is featured in the Superman: Earth One and Batman: Earth One graphic novels. Characters In other media Batman's Earth-One costume is available for download in Batman Arkham City. In The CW series The Flash, the Flash team encounter metahumans and doppelgangers of friends and colleagues from another inter-dimensional Earth, which they dub "Earth-2" while referring to their own as "Earth-1". Harrison Wells of Earth-2 takes some umbrage at this; although he generally accepts the terminology, he occasionally reminds Cisco Ramon and Barry Allen that his Earth can, from his perspective, be called Earth-1. A variation of Earth-1 appears in Justice Society: World War II. This universe is also the setting of Superman: Man of Tomorrow and Batman: The Long Halloween. Earth-1 is mentioned in Injustice (2021 film), where Mister Terrific tells