Other Protestant Christians also celebrate All Hallows' Eve as Reformation Day, a day to remember the Protestant Reformation, alongside All Hallow's Eve or independently from it.This is because Martin Luther nailed his Ninety-Five Theses to All Saints' Church in Wittenberg on All Hallows' Eve, because hundreds of visitors would come to the church during the celebration of Allhallowtide.[163] Often, "Harvest Festivals" or "Reformation Festivals" are held on All Hallows' Eve, in which children dress up as Bible characters or Reformers.[164] In addition to distributing candy to children who are trick-or-treating on Hallowe'en, many Christians also provide gospel tracts to them. One organization, the American Tract Society, stated that around 3 million gospel tracts are ordered from them alone for Hallowe'en celebrations. Others order Halloween-themed Scripture Candy to pass out to children on this day.