Pre Crisis Earth?
Appearing first in Detective Comics #1 I would think that he called Earth-Two home, but his team-up with various other detectives including the Human Target indicates Earth-One. Which Earth did the Pre-Crisis Slam call home? --Redknight 00:04, June 6, 2010 (UTC)
- It's possible he belonged to the theoretical "Earth-B". This might be the same reality in which Pre-Crisis Wildcat and Batman teamed up in.Yzz, Master of DOOM 00:31, June 6, 2010 (UTC)