PATMOS, one of the group of islands in the Ægean Sea which were called the Sporades, was situated to the south of Samos. Ancient writers represent it to have been about 30 Roman miles in circumference, and to have had a sea-port town of the same name as itself. It is celebrated

Patna. as the place where the apostle John endured banishment, and where he wrote the Apocalypse. The credulous point out a cave in which he is said to have sat while the heavenly visions passed before the eye of his imagination.