"Flash of Two Worlds!" is a landmark comic book story that was published in The Flash #123 (Sept. 1961). It introduces Earth-Two, and more generally the...

November 7, 2016. Ching, Albert (October 2, 2015). ""The Flash of Two Worlds": 9 new images from "The Flash" Season 2, Episode 2". Comic Book Resources. Archived...

the existence of another reliable Earth was established in a story titled "Flash of Two Worlds" in which Barry Allen, the modern Flash later referred...

worlds. Their powers allowed them to cross the dimensional boundary between worlds, and the men became good friends. Flash of Two Worlds (The Flash #123)...

the existence of another reliable Earth was established in a story titled "Flash of Two Worlds" in which Barry Allen, the modern Flash later referred...

"in world" history of the character known as "The Flash" has been written and rewritten many times as DC Comics rebooted their fictional worlds again...

focused on two characters who have worn the mantle of the Flash: Barry Allen, the second Flash (1959–1985, 2010–2020), and Wally West, the third Flash (1987–2008...

13, 2015). "'The Flash' Recap: "Flash of Two Worlds"". Collider. Retrieved August 1, 2017. Couch, Aaron (July 15, 2015). "'The Flash' Casts Michael Ironside...

The Flash is an American action television series developed by Greg Berlanti, Andrew Kreisberg, and Geoff Johns, airing on The CW. It is based on the...

Society of America. Earth-Two was the primary world of this publication era, as established in "Flash of Two Worlds" and "Crisis on Earth-Two!". In the...