| − | The early church remembered saints and martyrs collectively on various dates. Ephrem the Syrian mentions a feast held on May 13 at Edessa around 359. Pope Bonifice IV dedicated the Pantheon in Rome to "Saint Mary and all the martyrs" on this date around 609.<ref>Smith, C., "All Saints' Day," ''New Catholic Encyclopedia'' (2003).<br/>In classical times, the Romans observed Lemuria on May 9, 11, and 13. A ''lemure'' is a restless spirit, similar to a vampire. Patriarch John Chrysostom (d. 407) put All Saints' Day on the Sunday after Pentecost. The Orthodox Church still celebrates on this date.</ref>
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| − | Gregory III dedicated a chapel in St. Peter's Basilica to "all the saints" on November 1 around 731. The Northumbrian monk [[Bede]] promoted the new date in his ''Martyrology''. Around 835, Gregory IV asked Frankish Emperor [[Louis the Pious]] to proclaim a feast on this date.<ref>Strayer, Joseph R., "All Saints' Day," ''Dictionary of the Middle Ages'', (1983).<br/>Cross, F. L., and Livingstone, E. A., "All Saints' Day", ''The Oxford Dictionary of the Christian Church'' (1997).<br/>Smith, C., "All Saints' Day," ''New Catholic Encyclopedia'' (2003).<br/>Some authorities suggest that Gregory IV moved All Saints' Day from May 13 to November 1 to thin out Easter-related crowds in Rome. But May 13 continued to be observed as "All Martyrs' Day" until the 11th century.</ref>
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| − | All Saints' Day is mentioned by the ''Anglo-Saxon Chronicle'' in its entry for 1083.<ref>1083: O.E. Chron. (Laud MS.) Translated as "And in this same year departed Matilda, queen of King William, on the day after All-Hallow-mass." See "[https://avalon.law.yale.edu/medieval/ang11.asp The Anglo-Saxon Chronicle: Eleventh Century]".</ref>
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