Passage: Easter da bukukuwan da suka danganci shi bukukuwa ne masu motsi, a cikin cewa ba su fada a ranar da aka ƙayyade a cikin kalandar Gregorian ko Julian (dukansu suna bin zagaye na rana da yanayi). Maimakon haka, an ƙayyade ranar Easter a kan kalandar lunisolar kamar kalandar Ibrananci. Majalisar farko ta Nicaea (325) ta kafa dokoki guda biyu, 'yancin kai na kalandar Yahudawa da daidaituwa a duniya, waɗanda su ne kawai ka'idodin Easter da aka tsara ta hanyar Majalisar. Babu cikakkun bayanai don lissafi; an yi aiki a cikin aikin, wani tsari wanda ya ɗauki ƙarni da kuma haifar da rikice-rikice. (Duba kuma Computus da Reform na kwanan watan Easter.) Musamman, Majalisar ba ta yanke hukunci cewa dole ne Easter ya faɗi a ranar Lahadi. Wannan aikin ya riga ya kasance a ranar Lahadi na Easter a ko'ina. A cikin Kristanci na Yammacin Kiristanci, Easter kusan koyaushe yana faɗuwa ne a cikin kalandar lunisolar mai kama da kalandar Ibrananci, a ranar Litinin da Lahadi bakwai bayan ranar 22 ga watan Afrilu,
Gregorian