An 11th-century mosaic shows Epiphanius of Salamis, Clement of Rome, Gregory the Theologian, St. Nicholas the Wonderworker and Archdeacon Stephen. St. Sophia of Kyiv/Wikimedia CommonsNearly 60 years ago, in October 1962, Pope John XXIII convened the Second Vatican Council. For the 21st time in the Catholic Church’s history, the pope gathered bishops from around the world – several thousand of them – to address matters of church doctrine and practice. Today, Vatican II is remembered as a landmark