Julian calendar

calendar introduced by Julius Caesar in 45 BC

calendar used by the Eastern Orthodox Church from c. 691 to 1728

ancient Greek astronomer

unit of time and a version of the year often used in astronomy

type of year A on a solar calendar according to its starting and ending days in the week

type of year G on a solar calendar according to its starting and ending days in the week

type of year B on a solar calendar according to its starting and ending days in the week

type of year D on a solar calendar according to its starting and ending days in the week

type of year F on a solar calendar according to its starting and ending days in the week

type of year E on a solar calendar according to its starting and ending days in the week

type of year C on a solar calendar according to its starting and ending days in the week

thumb|Miniature from Menologion of Basil II for September 1

type of year FE on a solar calendar according to its starting and ending days in the week

type of year CB on a solar calendar according to its starting and ending days in the week

type of year DC on a solar calendar according to its starting and ending days in the week

type of year BA on a solar calendar according to its starting and ending days in the week

type of year AG on a solar calendar according to its starting and ending days in the week

method used to determine the day of the week for particular dates

changes in calendar conventions from Julian to Gregorian dates

way of calculating the day of the week of a given date

methods to calculate the day of the week

extension of the regular Julian calendar

group of traditionalist Eastern Orthodox bodies

28-year cycle of the Julian calendar

algorithm to calculate the day of the week in the Gregorian and Julian calendars

Greek Patriarch of Alexandria (1853-1925)

calendar used in the Venetian republic until 1757