Historical clue formulations

• Self-proclaimed — 2026-11-02
• Sworn — 2025-12-20
• Maintained — 2020-05-07
• Swore — 2012-12-30
• Owned up to — 2011-07-31
• Openly sworn — 2007-01-25
• Stated openly — 1999-11-10
• Declared — 1999-04-19
• Confessed — 1997-10-31