Julian calendar

Target entity: Julian calendar
Context triple: [Good Friday, calendar, Julian calendar]

• A. Gregorian calendar (Western churches)
  The Gregorian calendar (Western churches) is the internationally used solar dating system introduced in 1582 that most Western Christian churches follow for determining liturgical dates and feasts.
• B. Metonic cycle
  The Metonic cycle is a 19-year astronomical period after which the phases of the Moon recur on the same days of the solar year, forming the basis for many lunisolar calendars.
• C. Hebrew calendar
  The Hebrew calendar is a lunisolar calendar used primarily for Jewish religious observances, holidays, and the determination of ceremonial dates.
• D. Diocletian's Tetrarchy
  Diocletian's Tetrarchy was a late 3rd-century system of rule that divided imperial authority among four co-emperors to stabilize and more effectively govern the Roman Empire.
• E. Paschal cycle
  The Paschal cycle is the sequence of movable feasts and liturgical observances in the Christian calendar that are determined each year in relation to the date of Easter.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Julian calendar
Target entity description: The Julian calendar is an ancient solar calendar introduced by Julius Caesar in 45 BCE, historically used throughout Europe and still employed by some Eastern Christian churches for liturgical purposes.

• A. Gregorian calendar (Western churches)
  The Gregorian calendar (Western churches) is the internationally used solar dating system introduced in 1582 that most Western Christian churches follow for determining liturgical dates and feasts.
• B. Metonic cycle
  The Metonic cycle is a 19-year astronomical period after which the phases of the Moon recur on the same days of the solar year, forming the basis for many lunisolar calendars.
• C. Hebrew calendar
  The Hebrew calendar is a lunisolar calendar used primarily for Jewish religious observances, holidays, and the determination of ceremonial dates.
• D. Diocletian's Tetrarchy
  Diocletian's Tetrarchy was a late 3rd-century system of rule that divided imperial authority among four co-emperors to stabilize and more effectively govern the Roman Empire.
• E. Paschal cycle
  The Paschal cycle is the sequence of movable feasts and liturgical observances in the Christian calendar that are determined each year in relation to the date of Easter.
• F. None of above. chosen