Historical clue formulations

• Revealed accidentally — 2022-05-09
• Reveal inadvertently — 2022-01-10
• Accidentally say — 2014-11-18
• Blurt out, say — 2009-08-11
• Accidentally reveal — 2004-09-06
• Revealed — 2004-01-11
• Reveal accidentally — 2003-02-26
• Tell accidentally — 1999-03-11
• Spill — 1998-02-27