The Paschal cycle, in Eastern Orthodox Christianity, is the cycle of the moveable feasts built around Pascha (Easter). The cycle consists of approximately ten weeks before and seven weeks after Pascha. The ten weeks before Pascha are known as the period of the Triodion, referring to the liturgical book that contains the services for this liturgical season. This period includes the three weeks preceding Great Lent, the "pre-Lenten period", the forty days of Lent, and Holy Week. The 50 days following Pascha are called the Pentecostarion, also named after the liturgical book.
16th century Russian Orthodox icon of the Resurrection of Jesus Christ
Icon of Lazarus Saturday
Icon of Palm Sunday
Icon of Christ washing the feet of the Apostles (16th century, Pskov school of iconography)
A liturgical book, or service book, is a book published by the authority of a church body that contains the text and directions for the liturgy of its official religious services.
Manuscript of the Introit of the Mass (Florence, Italy).
Excerpt from the missal, a liturgical book, of the Sint-Pieters abbey (Ghent), manufactured in the 13th century. Manuscript preserved in the Ghent University Library.
Early 16th century choirbook with Josquin's Missa de Beata Virgine (Biblioteca Apostolica Vaticana, MS Cappella Sistina 45, folios 1v–2r.).
A decorative 14th century Missal of English origin, F. 1r. Sherbrooke Missal