holidays
December 17,
Christian feast day: O Sapientia
O Antiphons
The O Antiphons are antiphons used at Vespers during the Magnificat on the last seven days of Advent in Western Christian traditions. They likely date to sixth-century Italy, when Boethius refers to the text in The Consolation of Philosophy. They subsequently became one of the key musical features of the days leading up to Christmas.