Under the rule of Charlemagne in the 9th century, the year started at Christmas. From the time of the Capetian kings in the 10th century, the year started on Easter Day. It is only since 1564 that the new year has started on 1 January. In fact, in the Edict of Roussillon of 9 August 1564, King Charles IX decided to fix the start of the year as 1 January in order to standardise the calendar throughout the kingdom.
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