Pope Leo II became the bishop of Rome.
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The Trevi Fountain, one of Rome's most famous landmarks, was opened to the public by Pope Clement XIII.
Pope Pius VII restored the Society of Jesus.
Pope Anastasius I became the Bishop of Rome, reigning until his death.
Pope John Paul II established World Youth Day, an event for young Christians around the world.
John Paul II became the first pope to visit the Republic of Ireland.
