Historical clue formulations

• Append — 2025-01-30
• Add for good measure — 2012-10-02
• Add later — 2011-01-26
• Append — 2009-11-01
• Append — 2008-05-22
• Append — 2004-09-12
• Add — 2004-08-08
• Add — 2004-05-01
• Add, as a rider — 1994-01-30