Historical clue formulations

• Spoiler of a perfect report card — 2018-02-02
• Ruiner of a perfect report card — 2016-12-14
• First-floor apartment, maybe — 2012-10-28
• First-class aisle seat on most planes — 2011-02-09
• First-floor apartment — 2006-12-13
• Seat near the front of a plane — 2006-11-17
• Certain ground-floor apartment — 2003-01-19
• First-floor apartment — 2002-03-06
• Apartment next to the super's, maybe — 1997-08-15
• Ground-floor apartment — 1996-09-04
• Common first floor apt. no. — 1994-11-04