St. Matthew Island (phantom island) and H.C. Adams (1883) suggest that the error may have arisen from a confusion with Annobón Island, which lies at the same latitude but at 5°38′E longitude. St. Matthew Island (phantom island) St Matthew Island is a phantom island once thought to lie roughly one thousand kilometers northeast of Ascension Island in the Atlantic Ocean. It appeared on navigational charts until as late as the early twentieth century. It was supposedly located at approximately 2°S 8°W, and was alleged to have been discovered by the Portuguese on St. Matthew's Day 1516. It was shown and named on several maps going
Gorgona Agricultural Penal Colony the lands remained under the control of the Carthusians until the 1770s when the order sold its lands to the Grand Duke of Tuscany (the future Leopold II, Holy Roman Emperor) who turned the island into a fishing village and attempted to repopulate it. Following the unification of Italy in the mid-19th century, the island came under the control of the Kingdom of Italy which converted the former monastery lands into an experimental agricultural penal colony in 1869. Located across the Ligurian Sea from the Italian port city of Livorno, Gorgona island is considered "impossible" to escape from which has