Historical clue formulations

• The "O" of Jackie O. — 2024-12-02
• Billionaire Aristotle — 2016-04-04
• New York's ___ Cultural Center, promoter of Hellenic civilization — 2014-01-17
• Aristotle who named his yacht Christina after his daughter — 2012-09-05
• The "O" of Jackie O. — 2009-11-24
• Billionaire who bought the Greek island Skorpios — 2008-11-21
• Latter-day Aristotle — 2005-09-18
• See 17-Across — 2004-07-28
• Onetime lover of Callas — 2003-11-02
• Olympic Airways founder — 2002-05-02
• Kennedy follower — 1999-03-14
• Noted groom of 1968 — 1997-02-22