Transmatter Team Travelling Tales: The Final Two Times

Throughout their history, not only have the combined Justice League and Justice Society used the Transmatter Cubes for their annual gatherings, but individual members have as well. Sometimes, this has led to disasterous results, such as when the Supermen used a damaged Cube to save Earth-One from the alien Krogg and to save the Earth-Two Jimmy Olsen's life. And soon after, when Green Arrow and Black Canary used that same League Cube to travel to Earth-Two, and helped undo an alternate past created by Mark Ronsom the Ravager during World War II. Then there was the time Black Canary returned to Earth-Two to warn the Society about the Adjudicator. Each time, the Cube played a part.

Back in the present, once more the League hosted the Society for that year's gathering, only this time the event was interrupted by Earth-One's criminal Johnny Thunder who used his counterpart's Thunderbolt to immobilize all superheroes on that world. Thankfully, this provided the loophole necessary for the visiting Earth-Two heroes to avoid this same attack, and the Society along with former members Black Canary and Red Tornado aided them in defeating both Thunder and his Crime Champions. On this occasion, Canary learned that the person she thought she was... the Canary of the Justice Society, was actually her now dead mother. Shortly before passing, that Canary asked that her memories be transplanted into the mind of her decades-long comatose daughter, to give her the life denied her due to tragedy.

Following the invasion of Martian forces upon Earth-One, the remaining Justice League members ventured onboard the now destroyed Satellite in order to use the Transmatter Cube one last time to travel to Earth-Two. There, they recruited the Justice Society in helping them defeat Commander Steel and Mekanique, who had taken over their headquarters and held League member Steel hostage. During the Crisis on Infinite Earths, the Satellite would finally be destroyed along with its Cube, although the Justice Society's Cube remained in good repair despite nearly being destroyed by Vulcan Son of Fire.

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In the history of the annual Justice League / Justice Society teamups, the first ten team-ups transpired during specific times each year when they could traverse to the others' Earth. During this period, at times they would visit one another such as versus the original Crime Champions, the Anti-Matter Man, and Solomon Grundy.

 

During their second meeting, the League visited Earth-Two to help the Society defeat Earth-Three's Crime Syndicate... in the third occasion, the Society returned the favor by travelling to an Earth-One transformed into Earth-A to battle the new Lawless League. Sometimes, such as versus T.O. Morrow* and Creator2, both teams worked on the same case without actually meeting.

Then there were three occasions when the Society enlisted the aid of the League on Earth-Two to assist them in defeating threats such as the Black Sphere villains, Aquarius and the Iron Hand.

Once they employed use of the Transmatter Cubes, the League and Society attempted trading members to the other's headquarters for two simultaneous gatherings on both Earths, only to have these interrupted by sidetrips to Earth-X and New Genesis.

On one occasion, the Society hosted the League at the mansion of Earth-Two's Sandman, during the case wherein they learned of the tragic tale involving Sandy the Golden Boy.  On another occasion, the League hosted the Society at a fancy restaurant in Earth-One's Gotham City, which was interrupted by the Lord of Time and his five time lost heroes-turned-minions.

The League took an unplanned trip to Earth-Two during a case involving Cary Bates and the Injustice Society, while the Society took an unplanned trip to Earth-One to track down Psycho-Pirate and help their friends defeat Mordru. Another tale, not involving the Cubes at all, resulted in both teams working alongside the Squadron of Justice from Earth-S to save all three Earths.

The remaining actual gatherings of the League and Society seemed to favor the two groups meeting onboard the Satellite orbiting Earth-One. Such as during the death of Mister Terrific, the attack of the Secret Society of Super-Villains, the invasion of the Crime Syndicate (although in an alternate timeline, the League traveled to the Society's earlier headquarters to thwart Degaton's scheme), and the aforementioned battle with an evil Johnny Thunder. The final meeting prior to the Crisis, involving Commander Steel, had both groups travel to the other's world briefly.

So in the final estimation, both with and without the Cubes, their creators equally ventured to Earth-One and Earth-Two... for the League to aid their friends, for the Society to party with their pals.

* Morrow used his Futurenergy to create energy duplicates of five friends (Steve Trevor, Jean Loring, Shayera "Hawkgirl" Hol, Midge and Mera Curry) and one foe (Doctor Light) of the League, while Per Degaton's time machine created six temporal duplicates of the Society's old foes (Per Degaton, Wotan, Professor Zodiak, King Bee, Monster and Sky Pirate) from 1948 in 1941. The original friends and foes of these heroes existed separate and simultaneous to their "chronal-clones" on these occasions.