Tiberias is located on the west shore of the Sea of Galilee. The city is not mentioned in the ministry of Jesus. Herod Antipas built Tiberias between AD 18–22 to serve as the capital of the tetrarchy of Galilee and Peraea. He named it for Emperor Tiberius. The city was a health spa for the Romans, who enjoyed its hot sulphur springs located south of the city. Because the city was built on an old Jewish cemetery, the Jews considered the place unclean until AD 145, when Rabbi Shimon bar Yochai cleansed the city, allowing Jews to settle there. Tiberias eventually became the location of the Sanhedrin and a center for Jewish scholarship.