Historical clue formulations

• Palatial — 2022-11-20
• K — 2022-09-04
• K — 2021-03-20
• Concert piano — 2020-07-14
• Thou — 2018-01-10
• Steinway offering — 2013-12-04
• 10 Benjamin Franklins — 2008-01-24
• Thou — 2006-02-15
• K — 2004-12-08
• Heist unit — 2004-04-02
• Super-duper — 1996-11-06
• MGM ____ — 1995-07-06
• Thou — 1994-03-25