We begin with the first appearance of the Earth-Two concept from The Flash #123 in the landmark, “The Flash of Two Worlds.” Barry Allen travels to a parallel Earth to meet his boyhood hero, Jay Garrick (also The Flash) whom Barry thought was only a character in comic books. You can follow the show @ComicsLloyd on Twitter or send an email to ClassicComicsMBL@gmail.com. You can find me on Twitter @MattB_Lloyd and at www.dccomicsnews.com where I write reviews and edit news stories. You can also check out my chapter in “Politics in Gotham: The Batman Universe and Political Thought.” https://www.amazon.com/Politics-Gotham-Universe-Political-Thought/dp/3030057755 And: “Black Panther and Philosophy: What Can Wakanda Offer the World?” https://www.amazon.com/Black-Panther-Philosophy-Blackwell-Culture/dp/1119635845/ref=sr_1_1?crid=2F69N3WJBZMF3&keywords=what+can+wakanda&qid=1642053514&sprefix=what+can+wakanda%2Caps%2C256&sr=8-1 “The Flash of Two Worlds” Links The Flash #123 at DC Fandom Wiki https://dc.fandom.com/wiki/The_Flash_Vol_1_123 Retro-Review of The Flash #123 from DC Comics News https://dccomicsnews.com/2014/09/24/reto-review-flash-123-flash-two-worlds/ The Flash #123 Facsimile Edition Review from DC Comics News https://dccomicsnews.com/2020/02/26/review-the-flash-123-facsimile-edition/