- Members of the Legion of Super-Heroes go back in time to save Clark Kent from Brainiac. (Superman: The Animated Series: "New Kids in Town")
- Green Lanterns were rare in the Milky Way galaxy at this time. (Justice League Unlimited: "Far From Home")
- The Fatal Five take control of nearly all of the Legionaires, only Brainiac 5 and Bouncing Boy remain. Using their time sphere, they transport John Stewart, Supergirl and Green Arrow to their time to help rescue the rest of the Legion from the Fatal Five's control. Afterward, Supergirl decides not to return to the 21st century and stays because she had fallen in love with Brainiac 5. (JLU: "Far From Home")
(Note that in this episode it was incorrectly mentioned that this took place in the 31st century)
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