Historical clue formulations

• Decisive defeat — 2021-10-12
• *Decisive defeat — 2021-02-23
• Undoing — 2011-01-22
• Undoing — 2006-07-15
• Ignominious end — 2006-06-04
• 1-Across song — 2002-09-18
• Crushing defeat — 2000-06-28
• Downfall — 1995-11-28
• Final defeat — 1995-05-29