Historical clue formulations

• Nonprofit Broadway production grp. — 2016-11-05
• Old Broadway production grp. — 2012-08-04
• Broadway acronym — 2011-11-12
• Architectural pier — 2011-05-15
• "Man of La Mancha" production org. — 2009-11-21
• Architectural pier — 2009-08-30
• Architectural pier — 2008-07-31
• "Man of La Mancha" org. — 2006-06-24
• Theater org. — 2006-01-15
• Stage org. — 2003-08-15
• Stage org. — 2002-09-20
• Stage org. — 2002-09-13
• Broadway acronym — 2001-05-16
• Architectural pier — 1999-10-15
• Architectural pier — 1999-06-13
• Pilaster — 1998-12-20
• Pier, in architecture — 1998-04-16
• Architectural pier — 1997-07-02
• Theater acronym — 1996-11-24
• Rectangular pilaster — 1995-12-03
• Theater org. — 1994-06-15