Historical clue formulations

• Miracle on the ___ (surprise French/English victory of W.W. I) — 2026-02-20
• French river where two W.W. I battles took place — 2024-04-02
• Site of a W.W. I battle that saved Paris from capture — 2023-12-14
• Battle locale that marked a turning point in W.W. I — 2016-07-21
• 1914 battle locale — 2016-01-31
• French department — 2014-04-24
• River of W.W. I — 2014-03-04
• Seine tributary — 2010-11-21
• Champagne department — 2007-11-04
• Reims's department — 2006-05-07
• French department — 2004-12-26
• W.W. I battle locale — 2004-02-15
• Scene of two W.W. I battles — 2003-05-28
• Châlons-sur-___, France — 2001-06-24
• Scene of heavy W.W. II fighting — 2001-02-18
• Area in W.W. I news — 2000-02-04
• 1914 battle site — 1999-01-10
• W.W. I site — 1998-02-14
• Château-Thierry's river — 1997-10-23
• Chateau-Thierry's river — 1997-06-02
• W.W. I battle site — 1996-09-18
• Battle site of 1918 — 1996-06-16
• Seine feeder — 1995-12-28
• 1918 battle site — 1995-05-10
• W.W. I battle site — 1995-01-21
• River of W.W. I — 1994-10-31
• River to the Seine — 1994-08-23
• W.W.I battle site — 1994-06-24