Note 593 — PHOTIUS BIBLIOTHECA OR MYRIOBIBLON[6] (continued 4)
John Henry Freese translation
They celebrated Easter or the Paschal Feast on the day of the Jewish Passover (the 14th of Nisan, the first month of the Jewish year, corresponding to March-April), whatever day of the week it fell on. See the exhaustive account in Hefele, History of Christian Councils, i. 298, (1871).