The Whitsun reference article from the English Wikipedia on 24-Apr-2004
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Whitsun

For people who check facts
  1. Another name for Pentecost
  2. Whitsun, a poem by Sylvia Plath
  3. The Whitsun Weddings, a poem by Philip Larkin
  4. A Whitsun Ale (esp., English) is a county fair, with competitions, dancing (traditionally, morris dancing), music, and socialising, usually sponsored by a local pub or tavern.