The octave of the Epiphany is 6-13 January ([Wikipedia]). In 1236, the Wednesday...

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The octave of the Epiphany is 6-13 January ([Wikipedia]). In 1236, the Wednesday after was 16 January; in 1235, it was 17 January; in 1234, it was 18 January (this perpetual calendar, and this Catholic Liturgical Calendar). See also Sue Roe's, "The Problem of Dates".

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