The Greek Pope Saint Sixtus II is elected as the 24th successor of Peter and would reign for just under a year before being martyred. It was during the martyrdom of Cyprian that Sixtus pronounced the exclamation "Deo Gratias" which would be incorporated into the Holy Sacrifice of the Mass. It was Sixtus who effected the translation of the mortal remains of Saint Peter and Saint Paul.
Death of Saint Pammachius, Roman senator and friend of Saint Jerome who married the daughter of Saint Paula.
Death of Saint Fiacre. This Irish saint migrated to France where he lived as a hermit and there planted a garden which yielded a tremendous harvest every year, allowing him to share all the produce with the poor. He is considered patron saint of gardeners.
Death of Pope Alexander III, 170th successor of Peter who ruled for 22 years. It was Alexander who excommunicated Barbarossa because of his misdeeds, and, by supporting the the Lombard League, defeated Barbarossa at Legnano by means of the famous carroccio. He also called the 11th Ecumenical Council.
Cardinal Pietro Barbo is elected by his peers as Pope Paul II, 211th successor of Peter. Paul decreed that only cardinals would wear the red berretta and reduced the interval between Holy Years to 25 years. His pontificate would last for seven years
Pope Clement X canonizes Saint Rose of Lima making her the first saint from the new world.
Pope Leo XIII issues his fifteenth encyclical Superiore anno dealing with the recitation of the Rosary.