Historical clue formulations

• Crown of jewels — 2026-05-21
• Bit of regal headwear — 2026-01-18
• Monarch's headband — 2017-12-06
• Crown — 2012-07-17
• Headgear fit for a queen — 2008-07-22
• Tiara — 2004-02-12
• King topper — 2003-11-01
• Top of royalty — 2002-07-06
• Royal headwear — 2001-06-13
• Crown — 1999-06-29
• Crown — 1995-08-10