I heard that jesus b-day was around halloween. The reason we celebrate it on decemeber 25th is bcuz at one time that was the 25th day of the 10th month. But when julius ceaser(July) and agustus ceaser (august) added 2 month they messed up the names of everthing. Like SEPTember (sept = 7) OCTOber (octo=8) NOVember(nov=9) DECember (dec=10) latin prefixes i think.