in two inscriptions from Gotland (G 145 M and G 149 M), which contain the whole palindrome. Other Lady Jane Francesa Wilde's anthology of Irish folklore, Ancient Legends Mystic Charms & Superstitions of Ireland (1888), includes the tale of a young girl who is enchanted by a poet using the spell of a Sator square written on a piece of paper in blood. The Sator square, with some letters changed, features in eighteenth-century books on Pow-wow folk medicine of the Pennsylvania Dutch, such as The Long Lost Friend (see image earlier). In popular culture The Sator square has inspired many works in the arts, including some classical and contemporary composers such as works by Austrian composer Anton Webern and Italian composer Fabio Mengozzi, writers such as Brazilian writer Osman Lins (whose novel Avalovara (1973) follows the structure of the square), and painters such as American artist Dick Higgins with La Melancolia (1983), and American artist Gary Stephan with Sator Arepo Tenet Opera Rotas (1982). British-American director Christopher Nolan's 2020 film Tenet, incorporates all the five of the names from the Sator square: The main antagonist is named Sator. The artist who created the forged Goya drawings was named 'Arepo'. Tenet is the title of the film as well as the secret organization that works to save the world. The opening scene is set at an opera house. Sator owns a construction company called 'Rotas'. American author Lawrence Watt-Evans notes that Sir Terry Pratchett named the main square in the fictional city of Ankh-Morpork in his Discworld book series, "Sator Square", in a deliberate reference to the symbol. Matt-Evans notes that the Discworld series is full of other incidental references to unusual symbols and concepts. The song Tenet by the Nordic neo-folk band Heilung is based on the Sator square. All its individual musical parts, melodies and instruments (and even at times the lyrics) play the same both forward and backwards. See also Christian symbolism Christian cross variants List of Latin phrases Abracadabra, a second-century Roman magic word Abraxas, a mystical word in Gnosticism Nipson anomemata me monan opsin, a fourth-century Byzantine palindrome The Book of the Sacred Magic of Abramelin the Mage, a medieval book that contains word squares Notes References Further reading External links An Early Christian Cryptogram? Duncan Fishwick, University of St. Michael's College (1959) The "Magic Square" in Conimbriga (Portugal) Robert Étienne, University of Coimbra (1978) 1930s