Historical clue formulations

• Labor, e.g.: Abbr. — 2026-09-12
• Corp. division — 2020-12-06
• Part of U.S.D.A.: Abbr. — 2015-03-17
• University div. — 2013-07-30
• Abbr. in many a mail-order address — 2011-01-02
• State, e.g.: Abbr. — 2009-12-20
• Part of 5-Across: Abbr. — 2009-07-19
• Firm part: Abbr. — 2007-10-27
• Co. unit — 2004-12-09
• Cabinet div. — 2002-11-26
• Org. division — 2002-03-24
• HUD, for one: Abbr. — 2001-05-22
• Part of D.O.E.: Abbr. — 2000-12-22
• Corp. section — 2000-02-04
• Educ. or H.U.D., e.g. — 1998-06-30
• Part of U.S.D.A.: Abbr. — 1998-04-27
• Accounting, e.g.: Abbr. — 1997-10-01
• Agric. or H.H.S., e.g. — 1996-12-25
• ___of Educ. — 1996-07-02
• ___of Sanitation — 1996-02-06
• N.Y. Police _____ — 1994-02-07