What important demographic change has taken place in the Jewish community in the past 300 years?
Since the 1700's, Jews have been allowed to take more and more of a part in the secular world. This has resulted in many Jews marrying non-Jewish partners and becoming assimilated into non-Jewish culture. As this occurs, many Jews have stopped taking part in the traditional Jewish community. In addition, the worldwide Jewish population growth is almost zero percent. With fewer Jew participating in Jewish events and an almost non-existent natural population growth, fewer and fewer of the world's population identify with Jewish culture.