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
Green Island, Taiwan Green Island, Taiwan Green Island (Mandarin Pīnyīn: "Lǜ Dǎo"; Hokkien POJ: "Le̍k-tó") is a small volcanic island in the Pacific Ocean about off the eastern coast of Taiwan. It is at high tide and at low tide, making it the Republic of China's seventh-largest island. The island is administered as , a rural township of Taitung County and one of the county's two offshore areas (the other being Orchid Island). The island once served as a penal colony for political prisoners during Taiwan's period of martial law, although today it is primarily known as a tourist hotspot. The name "Green