The Thousandth Anniversary of Islam Mosque or The Anniversary Mosque (Russian: Мечеть 1000-летия принятия Ислама, Мечеть Юбилейная, Mechet 1000-letiya prinyatiya Islama, Mechet Yubileynaya) was built in Kazan, Tatarstan, Russia to commemorate the thousandth anniversary of the Islamization of the Volga Bulgars in 922. The alternative name of the mosque, and the most commonly used name, is The Mosque Across the Qaban (Russian: Закабанная мечеть, Zakabannaya mechet; Tatar Cyrillic and Latin respectively: Кабан арты мәчете or Qaban artı mäçete), because most of Kazan's mosques are situated on the other side of the Qaban, where the Tatar community was traditionally located before the October Revolution.