Historical clue formulations

• Ninnyhammer — 2026-03-07
• Hardly a genius — 2025-10-19
• Dummkopf — 2023-12-28
• Dum-dum — 2023-05-05
• Dummkopf — 2020-09-05
• Numbskull — 2020-04-04
• Fool — 2019-08-09
• Imbecile — 2016-09-07
• Numbskull — 2016-05-01
• He's no Einstein — 2013-12-22
• Fool — 2010-11-07
• Mental midget — 2009-05-12
• No-brainer? — 2008-04-16
• Lamebrain — 2007-12-10
• Idiot — 2007-10-24
• Dimwit — 2007-08-02
• Numbskull — 2006-09-25
• Lamebrain — 2004-08-24
• Alfred E. Neuman, for one — 2002-05-13
• Fool — 2002-02-21
• Knucklehead — 2001-11-08
• Idiot — 2001-02-20
• No-brainer? — 2001-02-11
• Idiot — 1997-06-16
• Idiot — 1997-05-16
• Idiot — 1995-11-10
• "Anyone who disagrees with me," in a saying — 1995-01-22
• Empty head — 1994-05-22