Possible Clues:

• Synagogue ceremony
• Event where 13 is a good number
• Certain 13-year-old's rite of passage
• Ceremony for a Jewish boy
• Rite of passage for a Jewish boy
• Jewish ceremony for a boy
• Ceremony with a Torah reading
• Party of 13?
• University zone, one sealed off very briefly (gosh!) after pub room ceremony
• Rite of passage for some 13-year-olds