I. When was Jesus born?
A. Popular myth puts his birth on December 25th in the year 1 C.E.
B. The New Testament gives no date or year for Jesus’ birth. The earliest gospel – St. Mark’s, written about 65 CE – begins with the baptism of an adult Jesus. This suggests that the earliest Christians lacked interest in or knowledge of Jesus’ birthdate.
C. The year of Jesus birth was determined by Dionysius Exiguus, a Scythian monk, “abbot of a Roman monastery. His calculation went as follows:
a. In the Roman, pre-Christian era, years were counted from ab urbe condita (“the founding of the City” [Rome]). Thus 1 AUC signifies the year Rome was founded, 5 AUC signifies the 5th year of Rome’s reign, etc.
b. Dionysius received a tradition that the Roman emperor Augustus reigned 43 years, and was followed by the emperor Tiberius.
c. Luke 3:1,23 indicates that when Jesus turned 30 years old, it was the 15th year of Tiberius reign.
d. If Jesus was 30 years old in Tiberius’ reign, then he lived 15 years under Augustus (placing Jesus birth in Augustus’ 28th year of reign).
e. Augustus took power in 727 AUC. Therefore, Dionysius put Jesus birth in 754 AUC.
f. However, Luke 1:5 places Jesus’ birth in the days of Herod, and Herod died in 750 AUC – four years before the year in which Dionysius places Jesus birth.
D. Joseph A. Fitzmyer – Professor Emeritus of Biblical Studies at the Catholic University of America, member of the Pontifical Biblical Commission, and former president of the Catholic Biblical Association – writing in the Catholic Church’s official commentary on the New Testament, writes about the date of Jesus’ birth, “Though the year [of Jesus birth is not reckoned with certainty, the birth did not occur in AD 1. The Christian era, supposed to have its starting point in the year of Jesus birth, is based on a miscalculation introduced ca. 533 by Dionysius Exiguus.”
E. The DePascha Computus, an anonymous document believed to have been written in North Africa around 243 CE, placed Jesus birth on March 28. Clement, a bishop of Alexandria (d. ca. 215 CE), thought Jesus was born on November 18. Based on historical records, Fitzmyer guesses that Jesus birth occurred on September 11, 3 BCE.
II. How Did Christmas Come to Be Celebrated on December 25?
A. Roman pagans first introduced the holiday of Saturnalia, a week long period of lawlessness celebrated between December 17-25. During this period, Roman courts were closed, and Roman law dictated that no one could be punished for damaging property or injuring people during the weeklong celebration. The festival began when Roman authorities chose “an enemy of the Roman people” to represent the “Lord of Misrule.” Each Roman community selected a victim whom they forced to indulge in food and other physical pleasures throughout the week. At the festival’s conclusion, December 25th, Roman authorities believed they were destroying the forces of darkness by brutally murdering this innocent man or woman.
B. The ancient Greek writer poet and historian Lucian (in his dialogue entitled Saturnalia) describes the festival’s observance in his time. In addition to human sacrifice, he mentions these customs: widespread intoxication; going from house to house while singing naked; rape and other sexual license; and consuming human-shaped biscuits (still produced in some English and most German bakeries during the Christmas season).
C. In the 4th century CE, Christianity imported the Saturnalia festival hoping to take the pagan masses in with it. Christian leaders succeeded in converting to Christianity large numbers of pagans by promising them that they could continue to celebrate the Saturnalia as Christians.continued here