Historical clue formulations

• Alphabet run — 2018-04-18
• String between B and F — 2015-09-03
• String after B — 2015-05-31
• Start of a musical scale — 2013-09-03
• Alphabet trio — 2011-01-02
• B train? — 2009-08-09
• Do, re, mi — 2009-05-31
• Alphabet trio — 2008-05-11
• Start of a musical scale — 2007-09-06
• Alphabetic trio — 2007-06-05
• Do, re, mi — 2007-01-07
• The third to the fifth? — 2007-01-05
• Alphabetic trio — 2005-10-30
• B train? — 2005-05-08
• Three after B — 2004-04-14
• Letter string — 2002-06-01
• Alphabetical run — 2001-05-26
• Alphabetical sequence — 1999-10-30
• Do, re, mi — 1997-08-08
• Alphabet trio — 1997-06-09
• Alphabetic sequence — 1997-04-06
• Alphabet trio — 1996-12-06
• Alphabet trio — 1996-10-17
• B followers — 1994-12-27
• B-F connection — 1994-03-01
• Three after B — 1994-02-09