Just a couple of points. AD is Anno Domini the year of the birth of Christ. But it contains an error when calculated by a monk Dionysius Exiguus in 300AD having Jesus Christ actually born in 4 BCE. The Jewish calendar's epoch is in 3761 BCE when ...... created the universe making this year 5776 by the Jewish calendar, this year is also 4713 AH (Chinese and Islam) and 5118 in the Hindu calendar, scientists like paleontologists consider this year 12016 HE (human era).
So the use of the terms AD and BCE/BC is Christian/Eurocentric and not universal. That is why its political.

