What does the crown in the yellow calendar mean?

Date of the bar mitzvah. Official mention refers to the day when the rite of passage is held in the yellow calendar. There are two kinds of crowns and gifts, which represent the adult symbol that men and women reach a certain age. The coronation ceremony is held when a man is 20 years old, symbolizing that a man has reached adulthood and can get married and start a family; The wedding ceremony was held when the woman 15 years old, indicating that the woman has reached marriageable age. Therefore, in the yellow calendar, coronation day is usually an auspicious day to hold these rite of passage.