Historical clue formulations

• Formal letter opener — 2016-01-31
• Quaint letter opener — 2015-03-29
• "___, With Love" — 2013-11-19
• Words sung "with love" in a 1967 #1 hit? — 2013-06-18
• Words sung "with love"? — 2011-06-16
• Quaint note opener — 2008-12-19
• Quaint letter opener — 2008-09-21
• Quaint note opener — 2007-07-07
• Quaint opening for a note — 2007-04-15
• Words sung "with love" in a 1967 hit — 2007-01-28
• "___ With Love" (1967 hit) — 2006-01-09
• "___ With Love" — 2005-02-24
• "___, With Love" — 2002-11-12
• "___, With Love" — 2000-01-12
• "___, With Love" — 1999-02-21
• Start of a Poitier film title — 1997-05-24
• "___With Love" — 1996-06-25
• "___With Love" — 1996-05-19