Allhallowtide  Allhallowtide, Hallowtide, Allsaintstide, or the Hallowmas season, is the triduum encompassing the Western Christian observances of All Saints' Eve (Halloween), All Saints' Day (All Hallows') and All Souls' Day, which last from 31 October to 2 November annually. Allhallowtide is a "time to remember the dead, including martyrs, saints, and all faithful departed Christians." The present date of Hallowmas (All Saints' Day) and thus also of its vigil (Hallowe'en) was established for Rome perhaps by Pope Gregory III (731–741) and was made of obligation throughout the Frankish Empire by Louis the Pious in 835. Elsewhere, other dates were observed even later, with the date in Ireland being 20 April. In the early 11th century, the modern date of All Souls' Day was popularized, after Abbot Odilo established it as a day for the monks of Cluny and associated monasteries to pray for the dead. The word "Allhallowtide" was first used in 1471, and is derived from two words: the Old English word "halig", meaning holy, and the word "tide", meaning "time" or "season" (cf. Christmastide, Eastertide). The latter part of the word "Hallowmas" is derived from the word "Mass". The words "hallow" and "saint" are synonyms. The Christian attitude towards the death of martyrs is first exemplified in the New Testament, which records that after the beheading of St. John the Baptist, his disciples respectfully buried him. Stephen was likewise "given a Christian burial by his fellow-Christians after he had been stoned to death by a mob." Two of the Post-Nicene Fathers, Ephrem the Syrian, as well as John Chrysostom, both wrote about the importance of honoring the dead; the theologian Herman Heuser writes that in the early Church, the feast days of the martyrs were local observances, with churches being built on those sites where their blood was shed. Frances Stewart Mossier explains that this changed during the persecution of Christians in the Roman Empire, saying that:   Following the establishment of All Hallows' Day and its vigil, All Hallows' Eve in the 8th century A.D., Odilo of Cluny popularized the day to pray for All Souls, forming the third day of the triduum of Allhallowtide.