Historical clue formulations

• People in charge: Abbr. — 2021-05-24
• Corp. V.I.P.'s — 2013-07-14
• Supermarket V.I.P.'s: Abbr. — 2010-10-10
• Baseball team V.I.P.'s: Abbr. — 2007-06-04
• Some hirers: Abbr. — 2005-12-03
• Nonunion employees: Abbr. — 2004-07-18
• Bus. bosses — 2003-04-23
• Major League V.I.P.'s — 2001-06-24
• Torre and Valentine: Abbr. — 2000-11-07
• Baseball bosses: Abbr. — 1999-04-06