257th Pope of the Catholic Church. Pontificate 1903 - 1914. Encouraged and expanded reception of Holy Communion. Most recent pope to be canonized.Pius X rejected modernist interpretations of Catholic doctrine, promoting traditional devotional practises and orthodox theology. His most important reform was to publish the first Code of Canon Law, which collected the laws of the Church into one volume for the first time. He was a pastoral pope, encouraging personal piety and a lifestyle reflecting Christian values.