Dec. 21 Monday of the Fourth Week of Advent; Optional Memorial of St. Peter Canisius, priest and doctor, Opt. Mem.

St. Peter Canisius (1521-1597) was born at Nijmegen, Holland, at the very time that Luther began to rebel against the Church and St. Ignatius Loyola was laying the foundations of the Jesuit Order. After studying the arts, civil law and theology, St. Peter joined the Jesuit Order and was ordained a priest in 1546. He is noted especially for the following services to the Church: he defended the Catholic faith against the Protestants; by preaching, writing, founding colleges and seminaries, he caused Catholic life to flourish; he rendered invaluable services to the ecumenical Council of Trent; he wrote many Catechisms which were translated into twelve languages in his own life time. He died in Fribourg, Switzerland.