Historical clue formulations

• Son of Poseidon — 2022-06-18
• Moon of Neptune — 2016-01-06
• Moon photographed by Voyager 2 in 1989 — 2015-03-06
• Moon of Neptune — 2014-11-11
• King in "The Little Mermaid" — 2014-08-12
• King in "The Little Mermaid" — 2014-01-05
• Largest moon in the solar system with a retrograde orbit — 2011-12-23
• Moon of Neptune — 2010-08-11
• Spiral seashell — 2008-11-24
• Son of Poseidon — 2006-01-23
• Greek god with a conch-shell trumpet — 2005-03-17
• Moon of Neptune — 2004-12-02
• Large spiral shell — 2003-07-11
• Neptune's largest moon — 2001-11-15
• Moon of Neptune — 1998-09-27
• Neptune satellite — 1998-04-05
• Colorful spiral seashell — 1998-02-01
• Largest moon of Neptune — 1997-03-06
• Neptune moon — 1996-12-15
• Merman of myth — 1996-06-29