Historical clue formulations

• Part of QE2: Abbr. — 2016-03-22
• Monarch crowned in 1558: Abbr. — 2009-05-27
• 1558-1603 monarch: Abbr. — 2003-08-28
• Queen of Eng. — 1996-09-24
• Her Majesty: Abbr. — 1994-12-25
• The Queen: Abbr. — 1994-12-13