Bannatyne, Lesley Pratt(1 augustus 1998).Halloween: An American Holiday, an American History. Pelican Publishing,p. 12.ISBN 1565543467.Geraadpleegd op 3 januari 2014"The Church brought its saints' celebrations to every new land it conquered. The celebrations on the eve of All Saints, All Saints' Day and All Souls' Day (the three were referred to as Hallowmas) spread throughout Europe. From the British Isles to France to Poland and Italy, the religious remembrance of the ancestral dead became an annual celebration of major importance."