Cool Image, Frontier.
1977 September Calendar page.
1977SeptFlash.jpg
Just realized how terrifying a maneuver like that would be for a character who can’t fly
Decades before FLASHPOINT, the seed had already been planted:
Buried Alien (The Fastest Post Alive!)
Buried Alien - THE FASTEST POST ALIVE!
First CBR Appearance (Historical): November, 1996
First CBR Appearance (Modern): April, 2014
Don't ever say Geoff Johns doesn't do his homework I guess.