According to Aharon Oppenheimer, the concept of the exile beginning after the destruction of the Second Jewish Temple was developed by early Christians, who saw the destruction of the Temple as a punishment for Jewish deicide, and by extension as an affirmation of the Christians as God's new chosen people, or the "New Israel". In actually, in the period that followed the destruction of the Temple, Jews had many freedoms. The people of Israel had religious, economic and cultural autonomy, and the Bar Kochba revolt demonstrated the unity of Israel and their political-military power at that time. Therefore, according to Aharon Oppenheimer, the Jewish exile only started after the Bar Kochba revolt, which devastated the Jewish community of Judea. Despite popular conception, Jews have had a continuous presence in the Land of Israel, despite the exile of the majority of Judeans. The Jerusalem Talmud was signed in the fourth century, hundreds of years after the revolt. Moreover, many Jews remained in Israel even centuries later, including during the Byzantine period (many remnants of synagogues are found from this period). Jews have been a majority or a significant plurality in Jerusalem in the millennia since their exile with few exceptions (including the period following the Siege of Jerusalem (1099) by the Crusaders and the 18 years of Jordanian rule of eastern Jerusalem, in which Jerusalem's historic Jewish quarter was expelled).