#Saint_Agnes's_Eve__January_20  a Christian holy day
  supertype:  Christian_holy_day  a religious holiday for Christians
  part of:  January__Jan  the first month of the year; begins 10 days after the winter solstice
     part of:  Gregorian_calendar__New_Style  the solar calendar now in general use, introduced by Pope Gregory XIII in 1582 AD to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be called Oct 15, and providing that only centenary years divisible by 400 should be leap years; it was adopted by Great Britain and the American colonies in 1752
     part of:  winter__wintertime  the coldest season of the year

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