They ' ve never mentioned Gotham by name in dialogue but there have been a couple of references to Batman existing on Earth 1 . The future newspaper in Flash mentions Wayne Techcontentuploads 201412 Untitled 5 . jpgIn season 4 when Oliver gave Felicity the codename Overwatch he said he was going to call her Oracle but that name was taken . <| sep |> Archeologists recently discovered an ancient tablet which , they believe , describes magic rituals to ask for fortune and wealth . Preliminary studies suggest the central litany must have sounded something like deelleedeengdeelleedong . Fossilized food was also found in the same place , clearly resembling modern pizza . <| sep |> Because there ' s more than one person who has access to do this ?