And at Oct 11: it says 'Oct 11, or other appointed day' ; notes that 'In the first ages ... Jan 1' ; and 'a day, usually in October, has been assigned by the Holy See ...'.... as is still apparent, from the wording of various parts of the Offices and Mass, the Octave day of Christmas was anciently a day kept in honour of our Blessed Lady, as Mother of God. As such, in some places, it is now replaced by the Feast of the Maternity, appointed for October 11.
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