Historical clue formulations

• 2, 3, 5, 7, 11, 13 and others — 2025-03-18
• 7 and 11 — 2008-08-01
• 7, 11 and 13 — 2008-03-02
• 7 and 11 — 2005-02-27
• Prepares, as a surface for painting — 2004-11-28
• 2, 3, 5, 7, 11, 13, etc. — 2000-11-29