AHC:Change to Calendar

How do we change the calendar so that by 2011, the date of the year used in international commerce (and in majority usage) is not 2011. I'm putting this in the before 1900 since despite the multitudes of Science Fiction writers trying to use the first atomic explosion as year zero, nothing close has come out.

Other than slight differences in the change over from Julian to Gregorian and the slightly more accurate Soviet Calendar (from 1 out of 4 century years w/leap day to 2 out of 9), the only calendars that I believe have seen signficant usage in Europe since 1500 are the French Revolution Calendar which was actually gotten rid of by Napoleon and the various non-Christian Religious Calendars (Jewish (AM), Islamic (AH)).

Do we have to go back far enough to eliminate Christianity as the dominant religion in Europe (loss at the Battle of Tours, etc.) or remove a significant part of European population with Black Plague ("The Years of Rice and Salt")?

Alternately for after 1900, any chance of a 3rd Reich Victory causing an Anno Reich notation?
 

Arrix85

Donor
A difference of a few years would be determined if the monk that set the birth of Jesus Christ since the foundations of Rome ( set at 753 years) wouldn't have made a mistake. There are different estimates, but we could be in 2015 or even 2019.

Other than that you have to get rid of Christianity. If Rome didn't fall and there was no Christianity we would count the years since its foundation.
 
Would it be possible for Christians to adopt the Jewish calender?

Possible, sure, but not very likely. Honestly I think the French Revolutionary calendar has more chances. Unless you mean a Julian calendar, but counting years since Anno Mundi (Creation) instead of Anno Domini (Incarnation). It was common in several areas of Oriental christianity, including IIRC Russia, for centuries.
However, Anno Domini was not necessarily bound to be the dominant convention among Christians. Copts use the Martyrs Era that starts from the persecutions of Diocletian. I think that other Oriental Christians use still the Seleucid Era and i'm sure they did for a long time. And even in Europe, Christians preferred the AUC to the Anno Domini standard for some centuries. IIRC, Anno Domini started becoming really widespread only after the seventh century.
Also, it is possible that the date of the Resurrection would be chosen instead of the birth of Jesus. Some people in middle ages actually did that way.
Otherwise, you just need to have the West not as the dominant cultural sphere in latest centuries. Have Industrial Revolutions happen in China, Muslim countries or India before, and those lands leading globalization, and the Anno Domini might be a widespread local convention like the AH is OTL instead of the world standard.
 
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