Create a GEDCOM Calendar Date object
Arguments
- year
The year given as an integer (not 0). Negative years are interpreted as Before the Common Era (BCE). If BCE, only year should be provided.
- month
The month of the year given as an integer between 1 and 12.
- day
The day of the month given as an integer between 1 and 31.
- julian
Whether the date is given in the Julian calendar. If not, it is assumed to be in the Gregorian calendar.