Historical clue formulations

• Someone singing "Something" — 2026-02-13
• One crying "Help!"? — 2023-07-23
• John, Paul, George or Ringo — 2016-04-25
• Apple grower? — 2013-06-27
• Memorable J.F.K. arrival — 2011-01-15
• Harrison, for one — 2010-02-17
• Any of the Fab Four — 2009-08-03
• John or George — 2009-04-19
• John, Paul, George or Ringo — 2008-10-27
• John, Paul, George or Ringo — 2007-05-28
• Mophead — 2006-03-23
• Part of a 1960's invasion — 2003-12-07
• John or Paul — 2003-10-08
• John, Paul, George or Ringo — 2001-05-28
• Mophead — 1999-02-28