As for All Souls ’ Day, on which prayers are recited in order to help souls in purgatory attain heavenly bliss, this holiday was fixed on November 2 during the 11th century by the monks of Cluny, France.
وأخيرا في سنة ٨٣٧ ب‌م ،‏ جعل البابا ڠريڠوريوس الرابع من هذا العيد عيدا عالميا .‏