Earth-6 was one of the many universes in the Original Multiverse. It was destroyed during the Crisis.
Earth-6 was shown on a map owned by Jay Garrick.
On December 10, 2019, like other universes in the Multiverse, Earth-6 was destroyed during the Crisis.
|"Flash of Two Worlds"||Mentioned|
|"A Flash of the Lightning"||Seen on Map|
- During pre-production for Crisis on Infinite Earths, this was planned to be the earth number for Superman from Superman: The Motion Picture Anthology but this was ultimately changed to Earth-96.