Historical clue formulations

• Comic actor who played Sir Robin and Harry the Haggler — 2020-11-14
• "Spamalot" writer — 2018-01-28
• Who wrote and sang "Always Look on the Bright Side of Life" — 2017-12-09
• "Spamalot" writer and lyricist — 2014-05-25
• "And Now for Something Completely Different" co-star — 2011-03-25
• Monty Python member — 2010-07-14
• "Spamalot" lyricist — 2008-11-07
• Author of "The Greedy Bastard Diary: A Comic Tour of America" — 2007-06-09
• "Always Look on the Bright Side of Life" songwriter — 2006-08-19
• "Monty Python" player — 2003-03-05
• Flying Circus performer — 2000-08-11
• Comic who co-starred in "Nuns on the Run" — 2000-08-05