Historical clue formulations

• N.Y.C. div. — 2016-10-23
• Rip off — 2016-04-28
• Staten Isl., for one — 2010-06-09
• Bx. or Bklyn. — 2009-05-03
• Part of N.Y.C.: Abbr. — 2009-02-13
• Manhattan, for one: Abbr. — 2006-09-03
• Bklyn., e.g. — 2006-06-28
• N.Y.C. division — 2005-05-08
• Staten Is., e.g. — 2003-09-24
• Part of N.Y.C. — 1997-06-14
• N.Y.C. div. — 1994-02-09