Tiberias is a city on the western shore of the Sea of Galilee (also called the Kinneret), in the Lower Galilee area of Israel. Established in 20 AD, it was named in honor of the emperor Tiberius.  Since the 16th century, the city has been considered one of Judaism's Four Holy Cities, along with Jerusalem, Hebron and Safed. In the 2nd–10th centuries, Tiberias was the largest Jewish city in the Galilee and the political and religious hub of the Jews in Israel. It has been known for its hot springs, believed to cure skin and other ailments, for thousands of years.