|A date inscription in the Mayan Long Count on the east side of Stela C fromQuirigua showing the date for the last Creation. It is read as 126.96.36.199.0 4 Ajaw8 Cumku and is usually correlated as August 11 or 13, 3114 BCE on theGregorian calendar. The date of188.8.131.52.0 4 Ajaw 3 K'ank'in is usually correlated as December 21 or 23, 2012.|
One of the first things you learn as a genealogist is that calendars change. We learn that there was a calendar change back at the time of the beginning of the implementation of the Gregorian Calendar on 24 February 1582. The change from the older Julian Calendar took place over a period of hundreds of years with the last European country's adoption of the newer calendar in 1923. Ignorance of the calendar changes can affect the dates given in records. If you are not aware of these issues I suggest a comprehensive study of the subject. You might want to start with the USGenWeb Project, Old Calendar and Dating Information, When the Calendar was changed and Who was Responsible.
If you are going to try and convince me to worry about the EOTW based on the Mayan Calendar, then you are first going to have to convince me that I should care about the Mayan Calendar at all. Meanwhile, for dates after 1582 in Europe, you just might want to consider that an apparent discrepancy in dates is really a reflection of the changes in the calendar system. If your ancestors came from the Middle East, were Jewish or had some other national or ethnic origins, you just might want to check to see what calendar system they were using to report dates of birth, marriage and deaths.