Luke 2:1 "In those days Caesar Augustus issued a decree that a census should be taken of the entire Roman world." (NIV)
Luke 2:1 - 7
ESV - 1 In those days a decree went out from Caesar Augustus that all the world should be registered. 2 This was the first registration when Quirinius was governor of Syria.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.