The incidents whose absolute chronology may be determined with more or less probability are the year of Christ’s nativity, of the beginning of His public life, and of His death.

The Nativity

St. Matthew (2:1) tells us that Jesus was born “in the days of King Herod”. Josephus (Ant., XVII, viii, 1) informs us that Herod died after ruling thirty four years de facto, thirty seven years de jure. Now Herod was made rightful king of Judea A.U.C. 714, while he began his actual rule after taking Jerusalem A.U.C. 717.