(Let's not even discuss Year Zero, seeing as this jockeying for Year One position occurred before the concept of zero had even been invented.) If we wanted to allow for commerce, trade, and simple communication across cultures to develop, we needed to be living in the same year. The Byzantine Empire started its first year in what was considered the year of creation (our 5509 B. The Church of Alexandria began its Year One in what is now 284 A. And two, when most people see it, they think it stands for Christian Era and Before Christian Era, so it doesn't really solve the problem people wanted to solve.” As the world continued to “shrink” due to the establishment of trade routes and expansion of population and as once-insular communities started opening up and exploring, a single Year One would have inevitably dominated.The Greeks were among the first to try to get everyone running on the same year. D., to coincide with the rise of Roman emperor Diocletian into power. C.—that is, “before Christ”—wasn't introduced until 1627, by a French astronomer. D., so decided to figure that in by counting backwards. The specifics of which one are not particularly important.Despite the rise of science, Christians have used—and many times have insisted upon—the continued use of the labels “AD” and “BC” to designate calendrical years, and thereby portray human history as directly relative to the birth of Jesus of Nazareth.But in our modern world of scientific reason and religious plurality, the battle over whether or not to use the increasingly accepted international scientific standard of BCE (“Before Common Era”) and CE (“Common Era”) has not waned, but rather has intensified. is most certainly referring to “Anno Domino” or “year of the Lord.” Sometimes the term Christian Era, Common Era, and Current Era are used which is the abbreviated form for C. This one is easier to determine if you know what A. simply means “before Christ.” Some people use the modern term B. There are many religious calendars in existence, but each is normally in use in one region of the world -- typically by followers of a single religion.Almost all of the world's religious calendars are based on religion, astrology, or myth: The division between BC/BCE and AD/CE is not based on religious considerations.
“In the Middle Ages and Antiquity, there were multiple eras jostling for recognition.”The key wasn't what Year One was, as much as getting everyone on the same page. “But because they were so powerful and influential, people picked up their calendar and dating system because it was convenient.”While these were the dominant systems, there was a hodge-podge of various cultures with different Year Ones. “One, they use the same year, so it's the same system.
If you were dating something, anywhere from today or years ago, you would either put an A.
but when did this begin and why do we date years by this method?
Most historians now place Herod's death as during 4 BCE.
So, unless one is a lion, a Buddhist, or student of ancient Roman civilization, the basis for 1 CE and 1 BCE remains an arbitrary selection.