On March 18, 1922, Judith Kaplan celebrated what is thought to have been the first bat mitzvah in the United States. It was family connections that made it possible for the event to take place: Her father, Rabbi Mordecai Kaplan, the co-founder of Reconstructionist Judaism, was the leader of the synagogue where she celebrated the rite of passage – the Society for the Advancement of Judaism, on New York’s...