Patmos belongs to the Dodecanese, Patmos is a relatively small island with a maximum length of 10 miles and a maximum of 6 miles and a total coastline of 18 miles. Patmos in religious history has been known since the 1st century by the presence there as an exile for two years by John the Theologian, a student of Jesus, who was in the cave of Agia Anna writing the 'Evangelium' and 'Revelation'.
Patmos is a small Greek island in the Aegean sea, most famous for being the location of both the vision of and the writing of the Cristan Bible’s Book of Revelation. One of the northernmost islands of the Dodecanese complex, it has a population of 2,998 and an area of 34.05 km2 (13.15 sq mi). The highest point is Profitis Ilias, 269 metres (883 ft) above sea level. The Municipality of Patmos, which includes the offshore islands of Arkoi, Marathos , and several uninhabited islets, has a total population of 3,047 (2011 census) and a combined land area of 45.039 square kilometres (17.390 sq mi). It is part of the Kalymnos regional unit.Patmos’ main communities are Chora (the capital city), and Skala, the only commercial port. Other settlements are Grikou and Kampos. The churches and communities on Patmos are of the Eastrn Orthdox tradition.