For example, the Gregorian calendar numbers its years in the Western Christian era (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras).
The instant, date, or year from which time is marked is called the epoch of the era.
Now I know that America isn’t the center of the world and the Earth is a big place.
Current dating system
There is no year zero in this scheme, so the year AD 1 immediately follows the year 1 BC.
This dating system was devised in 525 by Dionysius Exiguus of Scythia Minor, but was not widely used until after 800.
However, BC is placed after the year number (for example: AD 2017, but 68 BC), which also preserves syntactic order.
The abbreviation is also widely used after the number of a century or millennium, as in "fourth century AD" or "second millennium AD" (although conservative usage formerly rejected such expressions).
This makes the Chronology of the ancient Near East very difficult to reconstruct, based on disparate and scattered king lists, such as the Sumerian King List and the Babylonian Canon of Kings.
In East Asia, reckoning by era names chosen by ruling monarchs ceased in the 20th century except for Japan, where they are still used.For over a thousand years, ancient Assyria used a system of eponyms to identify each year.Each year at the Akitu festival (celebrating the Mesopotamian new year), one of a small group of high officials (including the king in later periods) would be chosen by lot to serve as the limmu for the year, which meant that he would preside over the Akitu festival and the year would bear his name.A system, method and device for providing current date labels for food contained in a container while indicating the event occurring on the date and time indicated, including “purchased,” “opened,” “cooked,” and “frozen.” The device includes a data entry unit for entering commands concerning...A system, method and device for providing current date labels for food contained in a container while indicating the event occurring on the date and time indicated, including “purchased,” “opened,” “cooked,” and “frozen.” The device includes a data entry unit for entering commands concerning the event, a processing unit for receiving the entered commands, maintaining the then current date, and transmitting a print command, and a printing unit for receiving the print command from the processing unit and printing the event with the then current date and time on a label.Many of them are supporters of the failed attempt to rebellion against the United States known as the Confederacy. That means that effective immediately today’s date will be Thursday, July 2rd 233 AE (American Era).