Feast Day: July 11
Pope Saint Pius I, also known as Pope Pius I, was the tenth Pope of the Catholic Church. Although little is known about his early life, it is believed that he may have been born a slave. There are also suggestions that he could have been the brother of Hermas, the author of the Christian literary work known as The Shepherd. Pope Pius I is most famously known for his contributions to establishing the date for Easter. He reportedly declared that Easter should be celebrated on the first Sunday after the full moon following the March equinox. This calculation method is still followed by the Catholic Church today. During his papacy, Pope Pius I also set rules for the conversion of Jews. It is unclear what these rules entailed, and the extent to which they were implemented. Nonetheless, it highlights his efforts to regulate and organize the Christian faith. Pope Pius I was an opponent of Marcion, an early Christian thinker and agnostic. Marcion's teachings were considered to be in conflict with mainstream Christian beliefs. Pope Pius I played an instrumental role in opposing Marcion's ideas and preserving the orthodoxy of the Church. While the details are uncertain, it is believed that Pope Pius I may have been martyred for his faith. The circumstances surrounding his death remain unclear, but his commitment to the Christian faith and his opposition to heretical teachings may have contributed to his martyrdom. It is worth noting that Pope Pius I lived during a crucial period in the history of the Catholic Church. His papacy coincided with the presence of Saint Justin Martyr in Rome, Italy, where the latter conducted his Christian teachings. Additionally, heretics such as Valentinus, Cerdon, and Marcion visited Rome during this time. This underscores the growing importance of Rome as the primary see and the center of authority within the early Church. Although Pope Pius I's representation in art or iconography is not widely known, he holds a revered place in the history of the Catholic Church. His feast day is celebrated on July 11th, in memory of his life and contributions to the Church. Pope Saint Pius I was born in Aquileia, Italy, and died around the year 155. While he may not have a patron saint role associated with him, his papal leadership and doctrinal contributions continue to inspire and guide the Catholic faithful to this day.