Historical clue formulations

• "What's the ___?" — 2023-01-15
• No laughing ___ — 2020-09-07
• Count — 2015-05-30
• Concern — 2013-03-27
• Make a difference — 2012-04-02
• Stuff — 2009-08-14
• Mean something — 2003-02-10
• Concern — 1996-12-05
• Make a difference — 1994-09-26