The Golden Age Superman
Earth-One
The Superman of Earth-One has a similar origin as his
Earth-Two counterpart, shifting roughly twenty years in the future. Kal-El (rather than Kal-L) is known to have grown up in Smallville before moving to Metropolis to start a reporting career. Differences from Kal-L include a childhood relationship with Lex Luthor, who becomes his greatest foe when he accidentally ruins an experiment and renders Lex bald (Adventure Comics #271). Friends in Smallville include Lana Lang (who left the town before meeting Clark) and Pete Ross. The largest difference in the early career of the Superman of Earth-One is starting his costumed career as Superboy (More Fun Comics #101) and joining the Legion of Super-Heroes (Adventure Comics #247). After the deaths of his parents, he moves to Metropolis, joins the Daily Planet, not Star, and works for Perry White, not George Taylor. He is founding member of the Justice League of America and encounters similar foes as his Earth-One counterpart - The Toyman, The Prankster, Metallo and Mr. Mxyzptlk. His maintains a Fortress of Solitude in the Arctic, rather than surrounding mountains. Of import, the Superman of this timeline is by far the only survivor of Krypton. In addition to his cousin Kara, who adopted a career as Supergirl (Action Comics #252), Argo City of Krypton survived the planet's destruction intact and now floats in space, the entire city of Kandor was taken by the alien conqueror Brainiac and now resides in a bottle in the Fortress and a Phantom Zone exists, filled with criminals from Krypton's history, condemned for capital crimes. that escape from time. Additional individual survivors include Nam-Ek, an immortal human/rondor hybrid who blown into space by Krypton's death throes and super-pets Krypto and Beppo. Superman was active up until Crisis though his final fate in the Earth-One timeline is unknown.
Prior Earth-0
The Superman of the Post-Crisis timeline Earth has an identical appearance to his counterparts on several worlds but differs in several respects. The Kal-El of this timeline comes from a sterile world of Krypton were intimacy is minimal. He arrives in Smallville but has no career has Superboy and his adoptive parents, Jonathan and Martha, live into old age and are a source of comfort and refuge to their son. He has no relationship with Lex Luthor, a ruthless billionaire in this timeline, until he has him arrested for a minor offense, earning him Luthor's eternal enmity(The Man of Steel LS #1-6). . Like Kal-L, he eventually marries Lois Lane (Superman the Wedding Album #1). A key important event is his death and resurrection at the hands of Doomsday, a surviving Kryptonian monster (Superman Vol. 2 #75).
Earth-1
The Kal-El of this Earth has a similar origin to his other Kryptonian counterparts, tho in this timeline Krypton is destroyed by the Dhernonians, an alien race with whom they have been at war when the traitor Zod-El betrayed his people. Other than Zod, Kal-El is thought to be the sole survivor of Krypton. He arrives on Earth at the end of the 20th Century and is raised by the Kents but only Martha survives into his adulthood. He finds employment at the Daily Planet, encounters a version of the Parasite and Lex Luthor and establishes a relationship with Lisa Lasalle. Lois Lane is a reporter who acts a political conscience, which he needs when the world has a mixed reaction of awe and fear of his exploits (Superman:Earth One #1-3).
Earth-2
The Superman of this Earth is thought to have a somewhat similar history to his other counterparts, surviving Krypton along with his cousin Kara. He is married to Lois Lane Kent, who is killed when Darkseid attacked Earth and Metropolis destroyed. Superman appears to lose his life when he, Batman and Wonder Woman attack Darkseid's forces (Earth-2 #1) but is actually captured and used to fuel a clone factory until he is liberated and sacrifices himself to destroy it (Earth-2: World's End #15). His role is assumed by his cousin Val-Zod.
Earth-Three/3
In this timeline, Kal-Il, son of maniacal Jor-Il, who jettison's his son while Krypton was destroyed. Arriving on Earth, the infant Kryptonian was raised by the equally dysfunctional John and Martha Kent, growing into a conqueror who is the greatest criminal on Earth and a founder of the Crime Syndicate of America (Justice League of America Vol. 1 #29, Justice League Vol. 2 #23)
Earth-10
Kal-Lof the Earth-10 timeline survived the explosion of Krypton and landed in Czechoslovakia in 1938. There he was found by Nazi forces and raised to be Overman, supreme defender of the Reich. He defeated American forces and led to the Nazi forces to rule most of the world. With an conquered peace, he left Earth to explore his heritage, only to return to see the Nazi Holocaust in full bloom. He became increasingly disillusioned with the Nazi regime and when the terrorist organization destroyed Metropolis, he again fled to the stars. His current whereabouts are unknown (Multiversity: Mastermen #1, Freedom Fighters Vol. 3 #5-6).
Earth-11
The best known survivor of Krypton in the Earth-11 timeline is female and adopts the name Superwoman, where she is a founding member of the Justice Guild (Countdown: The Search for Ray Palmer: Superwoman and Batwoman). She is married and has a daughter, Supergirl, who is also a costumed adventurer (DC Very Merry Multiverse #1).
Earth-12
The history of Superman in this timeline is largely similar to his Earth-0 counterpart. By the mid-21st century, he is an elder statesman among Earth's Super-hero population and has outlived his wife, Lois Kent. He abandons the Clark Kent identity at some point and his adopts a new one as a firefighter. He remains active with his version of the Justice League (Superman Beyond #1-20)
Earth-16
Little is known of the Superman of this timeline, save his has fallen in battle against Lex Luthor and is survived by a son, Chris Kent (Multiversity: The Just).
Earth-18
A journalist named Clark Kent lived in the 19th century of this timeline but his Kryptonian heritage, if any, is unknown (The Justice Riders LS).
Earth-21
The Kal-L of the Earth-21 timeline has a largely similar pre-1950 history to his Earth-Two counterpart. On this Earth, the US government became increasingly more paranoid of it's costumed protectors, enacting more authoritarian policies until an alien force known as the Center lead to the banding together of a new group of heroes who became the Justice League of this timeline (DC New Frontier LS).
Earth-22
The Superman of Earth-22 arrived on Earth in later 20th century and became one of the leading protectors of Mankind. Around the turn of the century, the Joker attacked the Daily Planet, killing everyone inside including Jimmy Olsen and Lois Lane. Vowing that despite his personal losses, justice would prevail, Superman was appalled when a new hero, Magog, murdered the Joker with impunity and public acclaim. Feeling he was not the hero for the times, he went to solitude until the action of next-generation vigilantes resulted in the destruction of Kansas. The now-elder stateman of the superhero community reformed the Justice League to restore order but the ensuing violence convinced world governments to attempt to destroy them all with a nuclear assault as they battled each other. Superman survived the explosion with a number of others and resolved to form a more healthy relationship with normal humans. He married Wonder Woman, beginning a long dynasty of heroes (Kingdom Come LS). It was later revealed that the explosion in Kansas knocked him into the Earth-0 timeline where he had series of adventures with the Justice Society before returning to the explosion aftermath on Earth-22 (Justice Society of America Vol. 3 #9-22). While he is thought to be extremely long-lived, his ultimate fate in this timeline is unknown.
Earth-23
The Krypton of the Earth-23 timeline exploded much like it does in other timeline but this time, the infant son of Jorel is found by poorly but kindly farmers who raise him to be a man of honor. He eventually develops his powers and adopts the codename Superman, battling his version of Luthor and founding the Earth-23 Justice League. Divergent from other timelines, either through changes in history or ambient ultraviolent radiation, persons of color occupy most of the dominant metahuman roles. Additionally, this Superman adopts the name Calvin Ellis and is elected President of the United States, which he balances against his heroic roles while keeping his true nature a secret (Action Comics Vol. 2 #9). The Superman of Earth-23 is also a founding member and representative Superman of the multiversal Justice Incarnate (Multiversity #1-2).
Earth-29
Earth-29 is inhabited by imperfect replicas of Superman and other denizens of Earth know as Bizarros. A prime replica, calling itself Bizarro #1, frequently encounters the Superman of several timelines, sometime as an adversary and sometimes as an inadvertant ally. Bizarro replicas also exist that are not part of the Earth-29 timeline and uncertainty exists as to which are and are not part of the true Earth-29.
Earth-30
In this timeline, Superman's arrival on Earth in the late 1940's differs from his Earth-One counterpart by 12 hours, landing him in the Ukraine instead of Kansas. He grows up on a collective and eventually when his powers are recognized, groomed by Stalin as a Soviet secret weapon. The presence of this Superman allows Stalin to rise to enormous power and the Soviet Union becomes the dominant influence on the Earth. America slides into irrelvance until scientist Lex Luthor leads a charge to modernize the national and ultimate force the Soviet Superman to surrender his role in world affairs and fade into obscurity. (Superman:Red Son LS)
Earth-32
Little is known of the history of the Superman of Earth-32, other than his fusion with the Martian Manhunter for dual role as Super-Martian (Multiversity Handbook #1).
Earth-40
In this timeline, Jor-El is family apparently are killed in the explosion that destroyed Krypton and the sole survivor of Krypton is Zod, rescued from the Phantom Zone by the US government looking for a weapon against Nazi science. Zod had been imprisoned there as a juvenille for depraved crimes and while he went along with the US plans to make him their champion, he secretly retained his demented ambitions and eventually murdered several US super-power agents in secret before he was revealed and destroyed by the combined forces of these agents, an Earth-4o Justice Society, in a battle at Chernobyl (JJSA: The Liberty Files and JSA Liberty Files: The Unholy Three).
Earth-43
A vampiric version of Superman or Ultraman exists in this world but little is known of his backstory (Final Crisis LS).
Earth-50
In this timeline, President Luthor comes to power and when his crimes are discovered by the Justice League and he is confronted by The Flash, he murders the speedster in cold blood. Enraged, Superman incinerates the President and begins an autocratic rule as Lord Superman along his equally autocratic Justice League cohorts. They are eventually defeated by the Earth-12 Justice League when Lord Batman turns on them and aids in the defeat of his former colleagues. Eventually, Lord Superman returns to power until he is defeated again by the heroes of Earth-12, this time being banished to the Phantom Zone. He is last seen conferring with Kryptonian warlord Jax-Ur on a possible escape (Justice League Beyond #17-24). His current activities are unknown.
