Bar and Bat Mitzvah to the event. However, this does not delay the onset of rights and responsibilities of being a Jewish adult which comes about strictly by virtue of age. The obligation to lay tefillin begins when a boy reaches bar mitzvah age. The common custom is for the bar mitzvah boy to begin putting on tefillin one to three months before his bar mitzvah. This way, by the time he is obligated in the commandment, he will already know how to fulfill it properly. The first mention of a party associated with a synagogue bar mitzvah was in the 13th century, so
Bar and Bat Mitzvah read from the Torah or lead prayer services whenever there is a minyan (quorum of 10 males) available to do so. However, the public celebration of a girl becoming bat mitzvah in other ways has made strong inroads into Modern Orthodox Judaism and also into some elements of Haredi Judaism. In these congregations, women do not read from the Torah or lead prayer services, but they occasionally lecture on a Jewish topic to mark their coming of age, learn a book of Tanakh, recite verses from the Book of Esther or the Book of Psalms, or say prayers from the