There have been attempts by various historians to claim an ancient history for the genre of science fiction. This claim is now a minority opinion, with the majority placing these works at best as examples of proto-science fiction. Lester del Rey has stated that the first work of science fiction was the first recorded work of literature, The Epic of Gilgamesh (earliest Sumerian text versions BCE ca. 2150-2000). Gilgamesh features a flood scene that in some ways resembles work of apocalyptic science fiction; however, it is probably better categorized as fantastic literature, as there is little of science or technology in it. Greek works with science fiction-like elements include besides Lucian's True History Aristophanes' The Clouds and The Birds, and Plato's descriptions of Atlantis.
Early elements of science fiction are also found in ancient Indian epics such as the Ramayana, which had mythical Vimana flying machines that were able to fly within t