You know we're on the Gregorian calendar, right? You keep talking about the Julian calendar in these threads when its leap year drift is why Christmas ended up all the way in December by time Gregory XIII came up with a non drifting calendar.

You know we're on the Gregorian calendar, right? You keep talking about the Julian calendar in these threads when its leap year drift is why Christmas ended up all the way in December by time Gregory IX came up with a non drifting calendar.