FAQ: Why do computer programmers confuse Halloween with Christmas? Because Oct 31 = Dec 25. Click here if you don't get it »
The original Roman 10 month calendar ends with the winter solstice finale - so in equal parts does the 12 month calendar end with the winter solstice finale.
The true reason we have the 12 month calendar was to hide the fact that they were celebrating the same pagan holiday...it was never about Jesus.
He was kind enough to explain the punchlines of the following programmer jokes, for those of us who are dazed and confused.
The punchline has nothing to do with the calendar. We're talking about number bases here; specifically "octal" and "decimal," or "base 8" and "base 10." Octal 31 (and it would be pronounced three-one) is the same as 25 in our regular (i.e. decimal) number system.
Thanks for taking trouble to explain that.