Historical clue formulations

• Many a presidential election occurs in one — 2023-05-14
• 2020, e.g. — 2020-07-21
• 2012, for one — 2012-11-21
• 1984, e.g. — 2011-02-16
• 1984, e.g. — 2006-05-27
• 2000, for one — 2005-05-10
• 2000, e.g. — 2000-06-08
• 2000, for one — 1999-03-05