Earth-Four (pre-crisis)

Earth-Four (pre-crisis)

Multiverse characters: 

The former Charlton Comics heroes: Captain Atom, the Blue Beetle, Nightshade, Peacemaker, the Question, Thunderbolt (Peter Cannon) and Judomaster

Notes: 

This Earth was introduced at the beginning of Crisis, and disappeared less than a year later

Named in Crisis on Infinite Earths #1 (April 1985)

Hypertime versions called Earth-4 and Earth 4