42. A second question in regard to these Armenians and Syrians is whether they may use the old calendar in fixing the date of Easter and of the other moveable feasts, or whether they should follow the revised calendar when they hold services in the Latin churches. It is also asked to what extent the use of the old calendar is lawful for them and whether this decision also binds those Orientals who, because they have only a small church which cannot hold them all, are forced to come in great numbers to Latin churches.