Historical clue formulations

• Stupefied — 2023-05-30
• Confused — 2020-03-29
• Out of it — 2017-11-01
• Flabbergasted — 2016-02-12
• Stupefied — 2012-01-05
• Out to lunch — 2011-05-25
• Foggy — 2010-08-21
• Confused — 2007-02-13
• Bewildered — 2001-12-14
• Stunned — 2001-09-21
• Stunned — 2000-10-20
• Befuddled — 1996-07-05