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 throwing some sort of party is traditional and frequently seen as necessary. Bar mitzvah festivities typically include a joyous seudat mitzvah, a celebratory meal with family, friends, and members of the community, the Bar Mitzvah boy delivering on this occasion a learned discourse or oration at the table before the invited guests, who offer him presents, while the rabbi or teacher gives him his blessing, accompanying it at times with an address. Others may celebrate in different ways such as taking the bar or bat mitzvah on a special trip or organizing some special event in the celebrant's honor. In