1647 — Margaret May Alacoque is born in L’Hautecour, France (Burgundy area) She has mystical experiences at ages 9 & 17
1671 — At age 24, she enters the Visitation Order of Nuns @ Paray-le-Monial, France
1672 — She makes her First Vows
1673-1675 — Visions of the Sacred Hear & revelation of the First Friday devotions. Assisted by Jesuit priest St. Claude de la Colombiere & Jesuit Order in spreading Sacred Heart/First Friday devotions
1683 — Becomes Novice Mistress
1690 — Dies, body later discovered to be incorrupt
1856 — Pope Pius IX establishes Feast of the Sacred Heart
1899 — Pope Leo XIII consecrates world to the Sacred Heart. This prayer still used today in Sacred Heart devotions
1920 — St. Margaret Mary canonized a saint by Pope Benedict XV
1928 — Sacred Heart Feast made a Solemnity by Pope Pius XI
1956 — Pius XII writes Encyclical on Sacred Heart Devotion
2002 — Pope John Paule II declares Sacred Heart Solemnity annual day of prayer for the sanctification of priests
