As early as the fourth century, the Greeks kept on the first Sunday after Pentecost the feast of all martyrs and saints, and we still possess a sermon of Saint Chrysostom delivered on that day.
About 731, Gregory III consecrated a chapel in Saint Peter’s Church in honor of all the saints, from which time All Saints’ Day has been kept in Borne, as now, on the first of November. From about the middle of the ninth century, the feast came into general observance throughout the Church. It ranks as a double of the^ first class with an octave.
- Father James J McGovern. “All Saints”. . CatholicSaints.Info. 7 November 2016. Web. 7 December 2016. <>