Historical clue formulations

• Pair — 2026-04-26
• Twosome — 2019-02-01
• Pair — 2011-05-11
• Couple — 2010-11-07
• Couple — 2007-05-12
• Group of two — 2004-12-01
• Pair — 2002-12-23
• Doublet — 2000-06-06
• Couple — 1999-12-14
• Couple — 1996-11-28
• Pair — 1995-09-24
• Couple — 1995-06-16