Historical clue formulations

• Hades vis-à-vis Persephone — 2023-12-16
• Certain cell provider — 2023-06-03
• Ransom note writer — 2017-08-20
• Polyphemus, to Odysseus — 2011-09-25
• Prisoner's opposite — 2009-04-28
• Hostage holder — 2007-12-21
• Ransom demander — 2005-03-05
• The "N" in "N x P" — 2000-03-14
• Hostage taker — 1995-09-27
• Paris, to Helen — 1995-03-02