Historical clue formulations

• Flops — 2025-10-31
• Sleeveless shirts, informally — 2024-12-18
• Loses on purpose, as an N.B.A. team — 2024-09-30
• Some scuba gear — 2022-05-18
• Scuba necessities — 2018-10-16
• Places for fuel — 2014-05-18
• Aquaria — 2014-04-15
• - — 2014-03-20
• Aquaria — 2014-03-05
• Goes suddenly from success to failure, in slang — 2013-11-18
• Oxygen suppliers for scuba divers — 2013-10-21
• Fails utterly — 2012-10-27
• Gas units — 2012-03-30
• Does badly at the box office — 2010-01-08
• Falls apart — 2007-09-22
• Armored vehicles — 2006-09-11
• Does very poorly, in slang — 2006-02-10
• Ground force group — 2005-05-15
• Goes south in a big way — 2004-12-09
• "Patton" vehicles — 2004-11-22
• Aquariums — 2002-01-09
• Scuba gear — 1999-10-24
• Army vehicles (You're welcome!) — 1993-12-13