Historical clue formulations

• Cancels out — 2026-06-21
• Cancels — 2026-03-13
• Cancels out — 2024-08-02
• Renders ineffective — 2023-04-07
• Renders invalid — 2012-08-12
• Brings to naught — 2007-09-30
• Disestablishes — 2006-03-17
• Makes ineffective — 1999-04-22
• Cancels — 1996-07-20
• Nullifies — 1994-04-18