Kalendarze używane w życiu liturgicznym Kościoła prawosławnego

The calendar in a crucial element of the liturgical sphere of the Orthodox Church. All the attempts to change any detail in the calendar had significant consequences. At the very beginning the Christians celebrated Passover together with the Jews. The persecution of the Christian Church resulted in a great differentiation between Christian and Old Testament tradition. With the passage of time, the Christian Passover was celebrated at different time, on a fixed date, and the rules which were supposed to help to compute the exact date of Passover established at that time, are still being used in the Orthodox Church. The reform of a calendar raised by Pope George was introduced in 1582. According to its reformers, the spring equinox was to be always dated on 21st of March, and the 21st day of March did not mean only the earliest celebration of Jewish Passover but the spring equinox as well. The reintroduction of a new calendar style into the liturgical practice of the Orthodox Church (sometimes called a new Julian calendar), which also occurred in particular local churches is, in fact, illogical. The admission of the reforms and leaving the date of Passover computed with the Julian calendar resulted in the introduction of two calendars into the Orthodox Church. Additionally, a constant date change of nonshifting celebrations towards the shifting ones imputed on the basis of a standing rule of Passover boards, will introduce further changes in so called typik, which will cause an inevitable confusion in liturgical practice of mass serving.