After World War II, the center of gravity for world Jewry moved outside Europe. In the aftermath of the Holocaust, large-scale emigration and postwar assimilation resulted in a disheartening contraction of European Jewry, with the notable exception of France. Today, Europe's Jews number only 17 percent of the world Jewish population. At the beginning of this century, they comprised 83 percent and were the center of the modern Jewish experience. In a radical reversal, former peripheries became the centers, notably American Jewry, the largest and most dynamic of the Diaspora communities,...