GOLDEN SUNDAY A.D. NUMBER. LETTER. EASTER TERM. EASTER DAY. *373 13 F March 24 F March 31 374 14 E April 12 D April 13 375 15 D April 1 G April 5 376 16 CB April 21 C April 27 *377 17 A April 9 A April 16 378 18 G March 29 D April 1 379 19 F April 17 B April 21 *380 1 ED April 5 D April 12 381 2 C March 25 G March 28 382 3 B April 13 E April 17 *383 4 A April 2 A April 9 384 5 GF March 22 D March 24 385 6 E April 10 B April 13 386 7 D March 30 E April 5 *387 8 C April 18 G April 25 * The asterisks mark the year in which the full moon falls on the Sunday, and which are referred to in the Letter. TO THE LORDS, HIS BRETHREN MOST BELOVED, THE BISHOPS ESTABLISHED THROUGHOUT THE PROVINCE OF ÆMILIA, AMBROSE, BISHOP. 1. THAT to settle the day of the celebration of the Passover requires more than ordinary wisdom, we are taught both by the Holy Scripture and by the tradition of the Fathers, who, when assembled at the Nicene Synod, in addition to their true and admirable decrees concerning the Faith, formed also for the above-mentioned celebration a plan for nineteen years with the aid of the most skilful calculators, and constituted a sort of cycle to serve as a pattern for subsequent years. This cycle they called the nineteen years’ cycle[127], their aim being that we should not waver in uncertain and ungrounded opinions on such a celebration, but ascertain the true method and so ensure such concurrence of the affections of all, that the sacrifice for the Lord’s Resurrection should be offered every where on the same night. Sidenote: S. Luke xxii. 7–12.