#January__Jan  the first month of the year; begins 10 days after the winter solstice
  supertype:  Gregorian_calendar_month  a month in the Gregorian calendar
  part:  Inauguration_Day  New_Year's_Day  Martin_Luther_King_Jr's_Birthday  Tet  Saint_Agnes's_Eve  Solemnity_of_Mary  Epiphany_of_Our_Lord  Twelfth_night  Christmas  mid-January
  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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