Historical clue formulations

• Woman's name that becomes another woman's name if you interchange its second and fourth letters — 2025-01-31
• Gore Vidal's "___ Breckinridge" — 2024-02-02
• Gore Vidal's "___ Breckinridge" — 2021-04-13
• Woman's name that becomes another woman's name when its vowels are switched — 2020-05-29
• "___ Breckinridge" (Gore Vidal novel) — 2018-06-19
• Breckinridge of fiction — 2016-10-11
• Name in a Gore Vidal title — 2011-04-07
• Pioneering woman lawyer Bradwell — 2010-11-12
• Dame Hess at a piano — 2010-10-18
• Vidal's "___ Breckinridge" — 2009-12-30
• Hess who was a dame — 2009-07-05
• Hess who was a dame — 2006-08-15
• "___ Breckinridge" — 2004-05-20
• "___ Breckinridge" — 2002-02-28
• Dame Hess — 2001-08-17
• Dame Hess — 2000-10-10
• Nicholas of ___, patron saint of mariners and thieves — 2000-07-21
• "___ Breckinridge" — 2000-03-12
• Keyboardist Hess — 1998-12-27
• Hess who was a dame — 1998-09-17
• Ancient city, home of St. Nicholas — 1997-12-25
• Vidal's Breckinridge — 1997-10-28
• Vidal's "___ Breckinridge" — 1997-06-22
• "___ Breckinridge" — 1997-03-02
• "____ Breckinridge" — 1995-08-16
• Vidal's Breckinridge — 1994-08-24
• Vidal's Breckinridge — 1993-12-21
• Pianist Hess — 1993-12-06