Mythopoeia (Ancient Greek: μυθοποιία, romanized: muthopoiía, lit. 'myth-making'), or mythopoesis, is a subgenre of speculative fiction, and a theme in modern literature and film, where an artificial or fictionalized mythology is created by the writer of prose, poetry, or other literary forms. The concept was widely popularised by J. R. R. Tolkien in the 1930s, although it long preexisted him. The authors in this genre integrate traditional mythological themes and archetypes into fiction. Mythopoeia is also the act of creating a mythology.[1]