January 7, used to be known as Distaff Day, or in England St. Distaff's Day (there was no St. Distaff though - the name was, for them, a joke). The distaff was a tool used in the spinning of flax or wool fibers; these are first wrapped around the distaff to keep them untangled before heading for the spinning wheel. The term distaff eventually came to be used in reference to the female side of a family "the distaff side".
January 7: St. Distaff's Day. A medieval European celebration of transitioning back to normal work routines, primarily focusing on spinning. "Partly work and partly play/ You must on St. Distaff's Day." (Links to a thorough history of this holiday, which has been revived by modern crafters.)
Distaff Day is traditionally celebrated on January 7th. Sometimes it is known as St. Distaff’s Day. It is the day after Epiphany – January 6th. This day signals the official end to the 12 days of Christmas.In the picture - Flax Dressed Very Loosely on a Distaff