Historical clue formulations

• Central points — 2024-12-14
• Two inside an ellipse — 2023-10-15
• Centers of attention — 2023-03-19
• Pair in an ellipse — 2022-06-26
• Duo in an ellipse — 2021-11-26
• Points of interest — 2021-07-01
• A hyperbola has two — 2020-12-02
• Points of convergence — 2020-06-23
• Hubs — 2019-03-27
• Centers of attention — 2015-12-07
• Centers of attention — 2011-08-02
• Two key points on an ellipse's major axis — 2011-03-31
• An ellipse has two — 2010-05-27
• Central points — 2009-11-30
• Centers of circles — 2009-06-23
• Pair in an ellipse — 2009-06-21
• Centers of attention — 2008-08-27
• Meeting points — 2008-06-25
• Places where lines meet — 2008-03-10
• Points that may have rays — 2007-11-07
• An ellipse has two of them — 2003-02-17
• Central points — 2001-04-30
• Earthquakes' points of origin — 2000-10-13
• Convergence points — 2000-08-31
• Origins of earthquakes — 2000-05-25
• Central points — 1998-04-26
• Points of convergence — 1997-02-17
• Geometry points — 1995-11-09