Historical clue formulations

• Addled — 2020-01-29
• Spaced out mentally — 2019-07-09
• Spaced out — 2010-07-11
• Spaced — 2008-08-02
• Befuddled — 2007-02-15
• Dazed and confused — 2002-08-12
• Out of it — 2000-12-13
• Lost — 2000-03-03
• Mentally spaced out — 1999-12-20
• Dazed — 1995-12-23