Historical clue formulations

• Lure — 2020-01-09
• Edward VII or VIII, in India: Abbr. — 2016-02-26
• H.R.E. part: Abbr. — 2014-04-17
• Hirohito's title: Abbr. — 2011-10-02
• Titus, e.g.: Abbr. — 2011-04-30
• Charlemagne, e.g.: Abbr. — 2010-11-20
• Titus or Tiberius: Abbr. — 2009-10-01
• Nero, e.g.: Abbr. — 2009-06-21
• Great Brit., e.g., in years past — 2009-04-23
• Hirohito's title: Abbr. — 2009-03-22
• The "E" in H.R.E.: Abbr. — 2008-02-17
• Akihito's title: Abbr. — 2007-06-12
• Ottoman, e.g.: Abbr. — 2007-06-10
• Great Brit., once — 2004-05-27
• Caesar, e.g.: Abbr. — 2002-10-27
• Charlemagne, e.g.: Abbr. — 2000-12-15
• Napoleon or Nero: Abbr. — 2000-12-07
• Titus, e.g.: Abbr. — 2000-03-12
• Nero's title: Abbr. — 1999-11-28
• Little Caesar? — 1999-06-25
• Akihito, e.g.: Abbr. — 1997-11-21
• Incas' realm, e.g.: Abbr. — 1997-11-13
• Nero, e.g.: Abbr. — 1997-07-09
• Sovereign ruler: Abbr. — 1995-07-30
• Haile Selassie, e.g.: Abbr. — 1995-06-21
• Holy Roman, e.g.: Abbr. — 1994-05-09
• Supreme ruler: Abbr. — 1994-05-08
• Forbidden City occupant: Abbr. — 1994-03-31