of the Jewish Sabbath and Feast of Weeks. In 40 BC. the Jewish puppet-king, Hyrcanus II, fell into the hands of the Parthians, who, according to their custom, cut off his ears in order to render him unfit for rulership. The Jews of Babylonia, it seems, had the intention of founding a high-priesthood for the exiled Hyrcanus, which they would have made quite independent of Judea. But the reverse was to come about: the Judeans received a Babylonian, Ananel by name, as their high priest which indicates the importance enjoyed by the Jews of Babylonia. Still in religious matters the Babylonians, as indeed the whole diaspora, were in many regards dependent upon Judea. They went on pilgrimages to Jerusalem for the festivals. How free a hand the Parthians permitted the Jews is perhaps best illustrated by the rise of the little Jewish robber-state in Nehardea (see Anilai and Asinai). Still more remarkable is the conversion of the king of Adiabene to Judaism. These instances show not only the tolerance, but the weakness of the Parthian kings. The Babylonian Jews wanted to fight in common cause with their Judean brethren against Vespasian; but it was not until the Romans waged war under Trajan against Parthia that they made their hatred felt; so that it was in a great measure owing to the revolt of the Babylonian Jews that the Romans did not become masters of Babylonia too. Philo speaks of the large number of Jews resident in that country, a population which was no doubt considerably swelled by new immigrants after the First Jewish-Roman War (66–73 CE). At the height of the war, Jerusalem and the Second Temple were destroyed. These events caused a wide dispersion of Jews in which many probably ended up in Babylonia. The Jews of Babylon would for the first time write prayers in a language other than Hebrew, such as the Kaddish, written in Judeo-Aramaic – a harbinger of the many languages in which Jewish prayers in the diaspora would come to be written in, such as Greek, Arabic, and Turkish. Accustomed in Jerusalem from early times to look to the east for help, and aware, as the Roman procurator Petronius was, that the Jews of Babylon could render effectual assistance, Babylonia became with the fall of Jerusalem the very bulwark of Judaism. The collapse of the Bar Kochba revolt no doubt added to the number