Historical clue formulations

• Word with clam or trunk — 2023-09-20
• Carpet cleaner — 2018-02-09
• Ship with smokestacks — 2016-12-26
• The Titanic, e.g. — 2016-08-28
• Soft-shell clam — 2014-09-21
• Soft-shell clam — 2013-10-30
• Raw bar offering — 2008-09-21
• Clambake item — 2007-10-21
• Clambake clam — 2005-01-05
• Clambake item — 2001-08-28
• Soft-shell clam — 2001-02-11
• Old-fashioned transport — 2000-08-26
• Carpet cleaner — 1999-08-01
• Clambake delicacy — 1997-02-22
• Stanley ___ (early auto) — 1996-09-11
• Transoceanic transportation — 1995-07-29
• Soft-shell clam — 1993-12-04