When did the year numbering system start?

when did people start using the numbering system we use for years today?


e.g. 1898, 1947, 2009When did the year numbering system start?
2,009 years ago...





This is 2009 AD, anno domini





This is traditionally counted from the year of Christ's birth.





Years before Christ are called BC.When did the year numbering system start?
The use of the concept A.D. was started in 532 by Dionysius Exiguus. This calendar designated the years from the calculation of the year of the birth of Jesus, which turned out to be inaccurate by a few years.





The Julian Calendar which was introduced in 45 B.C.E. was important for its calculation of the months. Jesus, of course, had not been born then.





The Gregorian calendar was made official In Roman Catholic countries by Pope Gregory XIII in 1582 to correct inaccuracies in the Julian Calendar which had caused it to become out of synchronicity with the solar year by about ten days. However, it took almost two hundred years for the Gregorian Calendar to be made official in all Protestant countries and it did not become official in Russia until the twentieth century.





Today scholars use C.E. (=common era) instead of A.D. (=Anno Domini=Year of our Lord), as non-Christians do not believe that Jesus is Our Lord.
early 16th century
Ownpool's right, a monk created the system in 582ad.
The calendar we use has been around for several hundred years, the Gregorian Calendar, before that the very similar Julian Calendar had been around for over a thousand years. I don't know exactly when they started using it.





Our calendar is based loosely on the birth of Jesus, but is not really accurate, he was born 4 or 6 BC, so it is off by a few years. Previously several cultures had calendars, including the Jews, who still use their calendar for religious reasons, also the Muslims, the Chinese, people of India, etc. all have different calendars usually starting with some religious event or other cultural or historic event.
Not until quite some time had passed - in 1582, to be exact, and then the discussion was which historical event they should peg it to. The system we use is the Gregorian calendar. There was also the Julian calendar, which was begun by the early Romans and was used in some parts of the world until quite recently.
under pope gregory in the 16th century, this is why it's called the gregorian calendar...

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