Historical clue formulations

• How contest winners might be chosen — 2024-06-12
• In no particular order — 2017-10-06
• Without rhyme or reason — 2012-12-02
• Haphazardly — 2011-03-28
• Willy-nilly — 2002-04-12
• Haphazardly — 1998-12-31
• Haphazardly — 1996-11-21
• In a desultory fashion — 1995-12-02