"The Negative-Crisis on Earths One-Two!" #56
| Series | Justice League Of America |
| Number | Vol. 1 #56 |
| Publisher | DC Comics, National Periodical Publications, Inc. |
| Date | 1967-09 |
| Type | Comic Book, Softcover |
| Language | English |
| Cover Artist | Murphy Anderson, Carmine Infantino |
| Inker | Sid Greene |
| Penciler | Mike Sekowsky |
| Writer | Gardner Fox |
| Genre | Superhero |
| Published in | Sparta, Illinois |
| Pages | 32 |
| Characters | Superman (Kal-El) (Earth 1), Green Lantern (Hal Jordan), Green Arrow (Oliver Queen)(Earth 1), Flash (Barry Allen), Justice Society of America:, Johnny Thunder, Thunderbolt, Mr. Terrific (Terry Sloane), Hourman (Rex Tyler), Wildcat (Ted Grant), Wonder Woman (Earth 2), Robin (Dick Grayson)(Earth 2), Hawkman (Carter Hall)(Earth 2) |
| Links | https://dc.wikia.com/wiki/Justice_League_of_America_Vol_1_56 |
| Notes | Multiversal Crossover The events from this issue or series involve a Multiversal Crossover between Pre-Crisis worlds and characters. This template will categorize articles that include it into the Pre-Crisis Multiverse Crossover category. and his |
Added by mlopinto