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The Orthodox calendar is a liturgical calendar used by the Eastern Orthodox Church, Oriental Orthodox Churches, and some Eastern Catholic Churches. It is based on the Julian calendar, which was introduced by Julius Caesar in 46 BC. The Orthodox calendar is 13 days behind the Gregorian calendar, which is the civil calendar used in most of the world.

The Orthodox calendar is divided into 12 months, each of which has 30 or 31 days. The months are named after the saints who are commemorated on the first day of each month. The Orthodox year begins on September 1, and ends on August 31.

The Orthodox calendar is used to determine the dates of religious feasts and fasts. The most important feast in the Orthodox calendar is Easter, which is celebrated on the first Sunday after the first full moon following the spring equinox. Other important feasts include Christmas, Epiphany, and Pentecost.

The Orthodox calendar also includes a number of fasts. The most important fast is the Great Fast, which lasts for 40 days before Easter. Other fasts include the Nativity Fast, the Apostles’ Fast, and the Dormition Fast.

The Orthodox calendar is a complex and detailed document. It is used by Orthodox Christians to determine the dates of religious feasts and fasts. The calendar is also a valuable resource for historians and scholars who study the history of the Orthodox Church.

In addition to the information provided above, here are some additional details about the Orthodox calendar:

The Orthodox calendar is a complex and detailed document that is used by Orthodox Christians to determine the dates of religious feasts and fasts. The calendar is also a valuable resource for historians and scholars who study the history of the Orthodox Church.




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