Historical clue formulations

• Kook — 2025-02-25
• Crank — 2014-07-18
• Fruitcake — 2014-04-22
• Crackpot — 2013-12-09
• Loon — 2008-06-15
• Crank — 2006-09-09
• Loon — 2005-05-08
• Cuckoo — 2002-03-02
• Weirdo — 2000-06-05
• Loony — 1999-04-17
• Screwball — 1998-07-18