Epic Guide|Mostly Harmless

Jeremy, here’s my response to your comment.

“Anno Domini (”In the Year of the Lord”), abbreviated as AD or A.D. defines an epoch based on the traditionally-reckoned year of the birth (or actually Incarnation) of Jesus of Nazareth.

This Christian era is currently dominant all around the world in both commercial and scientific use.

Presently, it is the common, international standard, recognised by international institutions such as the United Nations and the Universal Postal Union.
This is due both to the tradition and to the fact that the solar Gregorian calendar has long time been considered to be astronomically correct.

Further more, a monk invented the calendar, therefore, why should people strip the meaning out of the original work to suit their purpose? The original works include A.D. /B.C. If someone wants to rename it, they should make there own calendar.

The Anno Domini system was developed by a Scythian monk named Dionysius Exiguus in Rome in 525, as an outcome of his work on calculating the date of Easter. Byzantine chroniclers like Theophanes continued to date each year in their world chronicles on a different Judaeo-Christian basis — from the notional creation of the World as calculated by Christian scholars in the first five centuries of the Christian era. These eras, sometimes called Anno Mundi, “year of the world” (abbreviated AM), by modern scholars, had their own disagreements. No single Anno Mundi epoch was dominant. One popular formulation was that established by Eusebius of Caesarea, a historian at the time of Constantine I. The Latin translator Jerome helped popularize Eusebius’s AM count in the West. Another formulation, dominant in the East during the early centuries of the Byzantine Empire, was developed by the Alexandrian monk Anninus.