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
Veneration of the dead are remembered. On that day, families go to cemeteries to light candles for their dead relatives, leave them flowers, and often to picnic. The evening before All Saints'—"All Hallows Eve" or "Hallowe'en"—is unofficially the Catholic day to remember the realities of Hell, to mourn the souls lost to evil, and to remember ways to avoid Hell . It is commonly celebrated in the United States and parts of the United Kingdom in a spirit of light-hearted horror and fear, which is marked by the recounting of ghost stories, bonfires, wearing costumes, carving jack-o'-lanterns, and "trick-or-treating" (going door to door and