Historical clue formulations

• Simpleton — 2024-07-24
• Conehead — 2015-11-22
• Reluctant wearer of a cap — 2012-09-21
• Fool — 2006-05-25
• Class underachiever — 2004-06-25
• No Mensa member — 2002-02-10
• Kind of cap — 2002-01-26
• Chucklehead — 2001-09-09
• Cap wearer — 2000-04-13
• Last in the class — 1999-05-31
• Numbskull — 1997-03-03
• Ignoramus — 1994-05-03
• Not a whiz kid — 1994-04-14