In what year was Jesus born?

Uh, in a word 'NO.' The date was set by the church using the Gregorian calendar. We don't know what the exact date is. The Hebrew calendar is different as the Mayan and Aztec. Everyone has their own idea of what day or year it is. We've been ordered by the good people with the Christian church to use the calendar we have used for the last two thousand years. Perhaps we could use a new scientific calendar that might have a more precise year of our existence?