Bereavement in Judaism as Rosh Hashanah, cancel the mourning period completely. The thirty-day period following burial (including "shiva") is known as "shloshim" (). During "shloshim", a mourner is forbidden to marry or to attend a "seudat mitzvah" (religious festive meal). Men do not shave or get haircuts during this time. Since Judaism teaches that a deceased person can still benefit from the merit of "mitzvot" (commandments) performed in their memory, it is considered a special privilege to bring merit to the departed by learning Torah in their name. A popular custom is to coordinate a group of people who will jointly study the
Bar and Bat Mitzvah the minyan" ceremony, in which boys of thirteen and girls of twelve recited a blessing) since the mid-19th century. There were also bat mitzvah rituals held in the 19th century in Iraq. All this may have influenced the American rabbi Mordecai M. Kaplan, who held the first public celebration of a bat mitzvah in the United States, for his daughter Judith, on March 18, 1922, at the Society for the Advancement of Judaism, his synagogue in New York City. Judith Kaplan recited the preliminary blessing, read a portion of that week's Torah portion in Hebrew and English, and then intoned