John was on the island of Patmos. It was small, about 45 square km in area, one of the Dodecanese (meaning ‘12 islands’) grouped off what is now the western coast of Turkey, some 50 km west of today's Didim. It was not a holiday for John. He had been sent there as a captive to be punished for preaching the gospel and speaking about Jesus. According to Jerome, John was probably there during the last three years of the Emperor Domitian's rule, and was released when the Emperor was killed in AD96.