Historical clue formulations

• 5/29/1917, for J.F.K. — 2011-06-02
• July 4, 1872, for Calvin Coolidge: Abbr. — 2011-03-24
• When you entered this world: Abbr. — 2010-04-27
• Driver's license stat. — 1999-08-14
• Driver's lic. stat — 1998-09-06