Historical clue formulations

• Not off one's rocker? — 2021-07-13
• Like fortunate subway riders — 2013-12-10
• Like Rodin's thinker — 2012-10-06
• Ushered — 2011-04-18
• Had room for — 2011-02-06
• Ready for dinner — 2005-10-12
• No longer standing — 2005-05-03
• Ready to be served — 2002-08-28
• Had space for — 1999-08-15
• "Please be ___" — 1998-06-05
• In a chair — 1996-04-22
• Installed in office — 1995-09-11
• Like passengers during takeoff — 1994-12-13