Posted by The Old Roman Ordo is based upon the Tridentine Calendar or General Roman Calendar extant in 1907 i.e. prior to the 20C changes that resulted ultimately with the Novus Ordo.
This week’s “The Old Roman” which accompanies the Ordo is available to read/subscribe to here and compliments the Ordo with notes about the liturgy, the lives of the Saints commemorated and other devotional articles for actualising The Domestic Church.
