Pergamos (per'ga-mŏs, Revelation 1:11, A. V., but in R. V. Pergamum), height, elevation. A city of Mysia, about three miles to the north of the river Caicus, and 20 miles from its present mouth. The city was noted for its vast library, containing 200,000 volumes. Here were splendid temples of Zeus or Jupiter, Athene, Apollo, and Æsculapius. One of "the 3even churches of Asia" was in Pergamos. Revelation 1:11; Revelation 2:12-17. It is called "Satan's seat" by John, which some suppose to refer to the worship of Æsculapius, from the serpent being his characteristic emblem. The modern name of the city is Bergama.