Historical clue formulations

• Army NCO — 2025-06-01
• Two steps above cpl. — 2016-09-12
• Army E-6: Abbr. — 2014-06-27
• Squad cmdr. — 2014-02-28
• Squad leader: Abbr. — 2011-02-11
• Army NCO — 2010-07-14
• U.S.A.F. noncom — 2010-02-14
• U.S.A.F. E-5 — 2009-12-25
• U.S. Army E-6 — 2009-09-20
• Army NCO — 2009-07-09
• Mil. rank — 2009-01-15
• Army NCO — 2008-01-30
• E-5 in the U.S.A.F. — 2007-12-09
• An NCO — 2007-10-28
• U.S.A.F. rank — 2007-04-27
• Mil. rank — 2006-04-27
• Army N.C.O. — 2005-06-12
• Certain N.C.O. — 2005-05-19
• U.S.A.F. rank — 2005-03-02
• Army N.C.O. — 2004-12-14
• Army NCO — 2003-12-23
• Army N.C.O. — 2002-12-09
• Army E-6: Abbr. — 2001-09-27
• Certain N.C.O. — 2000-04-01
• A.P.O. addressee — 1998-09-30
• NCO — 1997-12-24
• An NCO — 1996-09-02
• Noncom: Abbr. — 1995-08-15
• Mil. officer — 1994-08-01