What was Italian scientist Aloysius Lilius' globally significant chronological creation of 1582?
Gregoran calendar Gregorian Calendar Gregorian date Gregorian Date Gregorian era Gregorian Calender Gregorian month Christian calendar Common calendar Catholic calendar Gregorian calender Implementation of the Gregorian calendar Gregorian calendar Christian Calendar Gregorean calendar Gregorian reform of the calendar Western calendar International calendar Gregorian Christian calendar
international calendar christian calendar catholic calendar implementation of gregorian calendar gregorian era common calendar gregorian reform of calendar western calendar gregorean calendar gregorian christian calendar gregorian calender gregorian month gregorian date gregorian calendar gregoran calendar
gregorian calendar
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Gregorian Calendar