Historical clue formulations

• Legendary Washington hostess — 2016-02-07
• Hostess who inspired "Call Me Madam" — 2011-06-08
• Socialite who inspired "Call Me Madam" — 2010-02-06
• Perle who inspired "Call Me Madam" — 2009-10-14
• Legendary Washington hostess Perle ___ — 2008-04-21
• Political hostess Perle — 2008-02-21
• Classic party host Perle ___ — 2006-05-15
• Hostess Perle — 2005-04-26
• Famous "hostess with the mostest" — 2004-09-01
• Hostess Perle — 2003-07-02
• Famous hostess — 2001-07-29
• Hostess Perle — 1998-10-18
• Hostess Perle — 1998-04-09
• Acclaimed "Hostess with the Mostes'" — 1997-10-28
• Famous party giver — 1997-05-18
• Host of note — 1996-12-13