Finally, in April of AD 311, by imperial decree, the Great persecution was put to an end even in the East.A few years later, Constantine the Great (reigning from AD 306 to 337) publicly declared himself a Christian and Christianity began to transition into the dominate religion in the Roman Empire.The English, “Before Christ” didn’t appear until the latter half of the 17th century and it wouldn’t be until the 19th century that it would be abbreviated.Shortly after the , Anno Domini was used officially under the reign of the Holy Roman Emperor Charlemagne (AD 742-814) and in the 11th century, it was adopted for official use by the Roman Catholic Church. This started in the 17th century, with the advent of the term Vulgar Era; this wasn’t because people considered it to be an age when everyone was coarse or rude, but because “vulgar” more or less meant “ordinary” or “common”, thus reflecting that the era was “of or belonging to the common people” (from the Latin vulgaris). date is actually wrong, as Jesus was born 4-7 years earlier than the year 1 date the Gregorian calendar works from. refers to Christ's birth, not his death, this expansion is wholly erroneous. C is an abbreviation for ' Before Christ', used in the Gregorian calendar (in turn used widely around the world, including in the US, Canada and Britain) to refer to the era before the birth of Jesus Christ, the central Christian figure. is believed to originate with the Bede in the eighth century, it only became popular in the modern era. C., including the classical age of the Greeks and many of the Roman’s more famous exploits. This is often credited with not only popularizing the calendar reference, but also introducing the concept of BC, notably setting 1 BC to be the year prior to AD 1, ignoring any potential zero year.(This is no surprise as Bede, like Dionysius, didn’t have a numeral zero to work with, see: The Story of Zero.
E is an abbreviation for ' Before Common Era', a non-religious alternative to the use of B. in designating the first period of the Gregorian calendar, the era of prehistory and much of antiquity.
In any event, Easter was/is the most important holy day of the Christian tradition, and it was decided at the First Council of Nicaea (AD 325) that it should occur each year on the Sunday following the first full moon after the spring equinox.
In order to forecast when exactly the holiday fell each year, Easter tables were created.
It's also difficult to see the year 0 remaining the same in the long term, and as this is a history website we're talking really long term.
It's easy to look at the fact both dating systems use the same zero date, and so have the same numbers for the same events, and conclude this is all pointless, why not just do the older system (I have actually been told this in response to the article.) But we live in a multi faith world where using 'the year of our lord' can be galling to many people, and the new system reflects a move to a broader, less restricted unit.This began simply via seizing Christian’s property, destroying their homes, burning all Christian texts, etc.