Quote:

This can only be the case if all this based on Jesus Christ's 1st birthday. If it's based on the day he was born (as with any other birthday or anniversary) it would have to be 1st Jan 2000.

It would all depend on who first decided on the date of Christ's birth, when this was agreed & which calendar was used. I don't know much about these things myself but I'm fairly certain the actual date is not known. Some say he was born during the summer months rather than near December/January. I'm not sure if the exact year is known either - by whichever calendar you use.

The Roman calendar would have been in use at the time these events took place. The Roman numerical system has no way to define zero. This was in use right up until recent times. It's still in use to today for certain documents (all Hollywood film copyright dates until very recently) & would certainly have been used by the translators of the Bible. You can write 10, 100 or 1,000 in Roman numerals (X, C or M) but there is no way to write 0. I suggest this is the most likely explanation for the missing year dot.

PS. While all this is very interesting I still think this discussion is pointless. The "great event" is over & done with & has been duly celebrated. I'm reasonably confident that none of us will be here to worry about when to celebrate the next one.