The Christmas Proclamation comes from the Roman Martyrology. It is usually read on Christmas Eve before the Midnight Mass. The proclamation sets the birth of Jesus in relationship to events of the Old Testament as well as the Greek and Roman worlds. It is a way of dating Jesus’ birth different from modern dating systems. The National Catholic Register offers a helpful explanation of this method of dating. The introduction to the proclamation comes from the Diocese of Crookston. There are several versions and translations of the proclamation. The proclamation below contains a few changes, clarifications, I made based on the different translations.
The Proclamation of the Birth of Jesus Christ
Throughout the season of Advent, the Church has reflected on God’s promises, so often spoken by the prophets, to send a savior to the people of Israel who would be Emmanuel, that is, God with us. In the fullness of time those promises were fulfilled. With hearts full of joy let us hear the proclamation of our Savior’s birth.
The Twenty-fifth Day of December, when ages beyond number had run their course from the creation of the world,
when God, in the beginning, created heaven and earth, and formed humankind in his own image and according to his own likeness;
when century upon century had passed since the Almighty, as a sign of covenant and peace, set his bow in the clouds after the Great Flood;
in the twenty-first century since Abraham, our father in faith, and his wife Sara came out of Ur of the Chaldees;
in the thirteenth century since the People of Israel were led by Moses in the Exodus from Egypt;
eleven hundred years from the time of Ruth and the Judges;
around the thousandth year since David was anointed King;
in the sixty-fifth week of the prophecy of Daniel;
in the one hundred and ninety-fourth Olympiad;
in the year seven hundred and fifty-two since the foundation of the City of Rome;
in the forty-second year of the reign of Caesar Octavian Augustus, the whole world being at peace;
Jesus Christ, eternal God and Son of the eternal Father, desiring to sanctify the world by his most merciful coming and loving presence, was conceived by the Holy Spirit, and when nine months had passed since his conception, was born of the Virgin Mary in Bethlehem of Judea, and was made man.
The Nativity of Our Lord Jesus Christ according to the flesh.