The Mind Mentor of Marvel and DC
Skip to the end of the chapter
At this point in the Main Universe timeline, it was before New 52's first major event, "War of the Three Bodies," during Justice League: Origin. In other words, Darkseid had not arrived yet, The Seven had not been formed, and there was no Justice League.
However, Main Universe Batman had mentioned the "Justice League" once in an earlier letter. That has now been deleted.
Burn after reading.
End of Chapter