Pope Gregory I the Great-540-604Father of Medieval Christianity - Doctor of the ChurchThe First Monk to be elected PopeMini-bookIn this, Pope Gregory's influence on not only the Church, but on the world, its governments, its rules of behavior, and much more, extended far beyond his lifetime.Pope Gregory composed the calendar of festivals.For his most extraordinary life, his numerous writings and encyclicals, he is venerated as the fourthDoctor of the Church.Among his many achievements, he is credited with, the Antiphonary,the introduction to new styles in church musicthe composition of several famous hymns,and the creation of theSchola Cantorum,the famous training school for singers.Worthy of his title, Pope St. Gregory the Great worked tirelessly, right until the Angel of Death summoned him Home.