The origin of this well-known Christmas carol O Come, All Ye Faithful remains a mystery. For several hundred years it was maintained that it was written by a cleric in the Middle Ages. The earliest known manuscript of the hymn was discovered 1740. The discovery of the manuscript is attributed to John Francis Wade. In England he was a copyist and writer of church music. At this time there was a Holy War between the Church of England and the Roman Catholic Church. Ward, in 1745, left England and took up residence in Douay, France. Several years later he was ordained as a Catholic priest. Ward was a calligrapher by training, and a skilled musician. These talents allowed Ward make copies of the hymn and distribute the sheet music across Europe. The tune name Adeste Fideles came from the first…