Historical clue formulations

• Bellyache — 2017-03-01
• Bellyache — 2012-02-05
• Bellyache — 2009-03-08
• Bellyache — 2007-07-30
• Complain — 2004-04-05
• Grumble — 2000-11-23
• Kvetch — 1999-01-19
• Kick — 1998-04-23
• Complain — 1996-05-02
• Ptarmigan — 1994-01-05