Historical clue formulations

• Certain fatty acids, informally — 2026-03-19
• Some sorority members, informally — 2025-01-29
• Symbols of electrical resistance — 2024-10-30
• 24th and final letters — 2024-09-18
• Series finales — 2020-01-11
• Literally, "great O's" — 2018-10-07
• Horseshoe lookalikes — 2018-05-11
• Opposites of alphas — 2017-06-11
• Symbols of resistance — 2017-05-15
• Last Greek letters — 2016-08-22
• "w"-like letters in foreign writing — 2016-04-02
• Pricey watches — 2013-10-28
• High-end watches — 2007-09-02
• Series finales — 2004-07-10
• Alternatives to Movados — 2003-12-28
• Some sorority women — 2003-12-07
• Some sorority women — 2003-09-21
• Some sorority women — 2003-07-27
• Ends — 2002-09-21
• Series enders — 2001-08-05
• Chi ___ (some college women) — 2001-05-04
• Certain sorority women — 2000-11-26
• Popular watches — 2000-04-15
• Some sorority women — 1999-12-01
• Some fraternity members — 1998-05-31
• Certain fraternity men — 1997-05-24
• Bulova rivals — 1995-02-05