Death of Saint Placid, disciple of Saint Benedict. It was Placid's father who helped Benedict secure the property of the famous monastery Monte Cassino.
Death of Saint Galla, daughter of the Roman Consul who jointed a community of consecrated women on the Vatican Hill and cared for the sick. She died of cancer on this date.
Death of the first Crusader Robrecht of Jerusalem, Count of Flanders.
Opening of the 8th Ecumenical Council also known as the 4th Council of Constantinople which ended the Greek schism and deposed Photius.
Death of Saint Flora, mystic and patroness of abandoned convents, single women and victims of betrayal. Many miracles were attributed to her after her death.
First day of the new Gregorian Calendar which was introduced in Italy and other Catholic countries. In order to make the transition from the old Julian Calendar to the new one authored by Pope Gregory XIII it was necessary to eliminate ten days. Thus, when people went to sleep on the night of the 4th in 1582, the next day they woke up was October 15th.
Pope Benedict XV issues his eighth encyclical Principi Apostolorum Petro on St. Ephrem the Syrian.
Death of Blessed Sister Faustina Kowalska, Polish religious and messenger for the Devotion to Divine Mercy. She recorded all the messages from the Sacred Heart of Jesus and compiled them in a 600-page diary entitled Divine Mercy in my soul. Born on August 25, 1905 in Glogowiec, Poland she died at the age of 33, the same age as Jesus was when He died on the Cross. She was beatified by fellow Pole Pope John Paul II on April 18, 1993.
Pope John Paul II issues his tenth encyclical Veritatis Splendor the "Splendor of Truth" that was completed August 6, 1993 and released on this day to the world.