Reformation Day offers a theological reason for its observance of Reformation Day, stating that: Alongside Reformation Day, many Protestant Churches observe All Hallow's Eve on October 31, the vigil of All Saint's Day. Reformation Day Reformation Day is a Protestant Christian religious holiday celebrated on 31 October, alongside All Hallows' Eve (Halloween) during the triduum of Allhallowtide, in remembrance of the onset of the Reformation. According to Philip Melanchthon, 31 October 1517 was the day German monk Martin Luther nailed his "Ninety-five Theses" on the door of the All Saints' Church in Wittenberg, Electorate of Saxony in the Holy Roman Empire. Historians
All Hallows Honey Lane Hallows de Honilane" (1279); "All Hallows in Honylane" (1287) and "Parish of Honylane" (1297). The parish of All Hallows was very small, and may originally have comprised only the area of those properties which surrounded Honey Lane and the churchyard and then been subsequently enlarged in the early 13th century. Even after this enlargement, the parish, covering only about 1 acre (0.4 hectare) in area, was one of the smallest in the City. There was a suggestion in 1658 that it should be united with that of St. Mary le Bow, but the idea was dropped and the two remained