Historical clue formulations

• One of Neptune's moons — 2022-09-11
• Moon of Neptune — 2014-12-21
• Sea nymph — 2013-02-05
• Calypso, e.g. — 2011-02-25
• Reined in nymph — 2009-09-19
• One of Poseidon's attendants — 2006-03-18
• Moon of Neptune — 2004-03-28
• Moon of Neptune — 2002-04-06
• Moon of Neptune — 2001-09-15
• Sea nymph — 1999-02-28