Earth-One (pre-crisis)

Earth-One (pre-crisis)

Multiverse characters: 

DC's Silver Age heroes, including the original Justice League of America: police scientist Barry Allen as the Flash; test pilot Hal Jordan as Green Lantern; Thanagarian Katar Hol as Hawkman; scientist Ray Palmer as the Atom; and reporter Clark Kent (Kal-El), who as a teenager became Superboy before starting his career as Superman.

Notes: 
  • The default Earth for most of DC's comics during the time the original DC Multiverse construct was in use, Earth-One was by far the most populated and widely explored and it retained dominance over the other four worlds which were merged with it during the Crisis on Infinite Earths storyline.
  • First described as a distinct Earth in The Flash (vol. 1) #123 (September 1961), first named in Justice League of America (vol. 1) #21 (August 1963)
  • The pre-Crisis era is generally deemed to end in March 1986. For the purposes of this website, the pre-Crisis era concludes just before Legionnaires 3 #1 (Feb 1986),