Historical clue formulations

• Ill — 2023-08-13
• Ailing — 2020-08-24
• Down with the flu, say — 2020-05-25
• Really cool, in slang — 2019-01-16
• Totally awesome, in slang — 2018-04-29
• "Awesome!" — 2017-04-11
• Ailing — 2016-12-11
• Start of a "recuperative" word ladder ending at 73-Across — 2016-09-27
• ___ as a dog — 2016-09-12
• Onetime competitor of Mad magazine — 2015-04-03
• Really cool, in slang — 2014-06-24
• Down with the flu, say — 2014-04-22
• Green around the gills — 2012-07-11
• ___ as a dog — 2009-04-28
• Twisted — 2008-10-25
• Really warped — 2008-05-10
• Twisted — 2007-09-13
• Really warped — 2005-08-26
• Twisted — 2005-01-20
• Under the weather — 2003-02-11
• Down with something — 2002-04-23
• Not well — 2002-01-29
• Under the weather — 2002-01-02
• Mentally twisted — 2000-11-22
• Like some jokes — 1999-05-30
• Mentally twisted — 1998-12-09
• Kind of bay — 1998-10-29
• Down with the flu — 1996-06-04
• Under the weather — 1994-09-28