Historical clue formulations

• Hired soldier, in slang — 2026-07-14
• Windy City exchange, in brief — 2025-12-19
• Chicago exchange, for short — 2025-10-30
• Classic car that shared its name with a planet, informally — 2025-10-12
• Soldier for hire, in brief — 2024-10-09
• Chicago exchange, informally, with "the" — 2023-04-26
• Chicago exchange, in brief — 2021-07-28
• Chi-Town exchange — 2020-04-25
• Bygone Ford make, informally — 2018-06-07
• Bygone Ford make, briefly — 2018-02-19
• Chicago exchange, briefly — 2016-06-06
• Chicago exchange, in brief — 2016-02-05
• Former Ford make, informally — 2015-06-28
• Chicago market, with "the" — 2014-08-15
• Bobcat or Cougar, for short — 2012-06-07
• Bygone Ford car, informally — 2012-03-26
• Chicago exchange, informally, with "the" — 2011-11-03
• Grand Marquis, e.g., briefly — 2011-05-20
• Chicago exchange, for short — 2011-04-06
• Chicago exchange, for short — 2010-03-10
• Ford auto, briefly — 2010-01-18
• Grand Marquis, e.g., for short — 2009-08-09
• Chicago futures exchange, for short — 2006-12-03
• Ford product, briefly — 2006-05-26
• Sable or Montego, for short — 2006-02-11
• Montego or Grand Marquis, for short — 2005-06-12
• Ford product, informally — 2005-04-08
• Thermometer fill: Abbr. — 2001-05-29
• Ford offering, for short — 2001-03-30
• Chicago exchange, for short — 2000-12-26
• Ford product, briefly — 2000-06-16
• Ford product, briefly — 2000-04-05
• Grand Marquis, for short — 1999-08-13
• Cougar, briefly — 1999-06-13
• Ford Motor product, informally — 1999-06-01
• Certain Ford, briefly — 1998-10-18
• Ford make, for short — 1998-08-28
• Certain Ford, for short — 1998-01-13
• Certain exchange, for short, with "the" — 1997-11-01
• First planet: Abbr. — 1996-10-28
• Hired soldier, in slang — 1995-04-30
• One of the exchanges, for short — 1994-11-11
• Hired soldier, in slang — 1994-05-01