Historical clue formulations

• 1920 play from which the word "robot" comes — 2023-04-21
• Classic work by Karel Capek — 2021-01-10
• Original tale of robot rebellion — 2020-12-06
• Futuristic play of 1921 — 2018-08-24
• Capek play that debuted the word "robot" — 2018-08-01
• Play from which the word "robot" comes — 2018-07-20
• 1921 play for which the word "robot" was invented — 2018-03-03
• 1921 play that ends with the extinction of the human race — 2015-11-11
• 1921 play that introduced the word "robot" — 2015-06-17
• Pioneering sci-fi play — 2014-12-31
• Whence the word "robot" — 2014-05-22
• Work by Karel Capek — 2013-04-08
• Classic play whose title is an abbreviation — 2012-10-04
• Play that introduced the word "robot" — 2011-02-27
• Play from which the word "robot" comes — 2010-11-30
• Capek play — 2010-10-27
• Visionary 1921 drama — 2010-07-17
• Karel Capek play — 2009-09-15
• 1921 play that introduced the word "robot" — 2009-04-22
• Play with machines — 2008-11-09
• Play about robots — 2007-07-24
• Karel Capek classic — 2007-02-05
• Play that introduced the word "robot" — 2006-08-16
• Karel Capek drama — 2006-07-10
• Capek play — 2005-11-09
• Capek play — 2005-10-19
• Capek play — 2005-05-17
• Karel Capek play — 2005-02-22
• Play with robots — 2005-01-23
• Karel Capek play — 2005-01-17
• Automaton-themed play of 1921 — 2005-01-16
• Capek play — 2004-10-19
• Capek play — 2004-06-06
• Karel Capek play — 2003-11-16
• Capek play — 2003-05-27
• Visionary 1921 play — 2003-05-03
• 1921 man-vs.-machine play — 2003-01-31
• Capek play — 2002-11-06
• Karel Capek play — 2002-08-22
• Karel Capek play — 2002-04-29
• Futuristic 20's play — 2002-03-30
• Capek play — 2002-03-12
• Man-vs.-machine play — 2002-02-01
• Satirical play of 1921 — 2001-11-03
• Capek play — 2001-09-03
• Capek play — 2001-08-05
• Capek play — 2001-05-17
• Capek drama — 2001-02-01
• Karel Capek classic — 2000-10-05
• Futuristic play of 1921 — 1999-09-01