Historical clue formulations

• Quick snap time, in football — 2015-03-14
• With 15-Across, preparing to pop the question, say — 2013-10-15
• Two-___ — 2012-12-21
• ___ occasion — 2012-08-08
• When a quick snap may happen — 2011-01-21
• Down ___ knee — 2010-09-23
• With 6-Down, ready to propose — 2008-07-29
• Down ___ knee — 2007-04-21
• "___ hand …" — 2006-10-20
• See 57-Down — 2004-09-11
• ___ side (askew) — 2004-07-09
• Two-___ (court situation) — 2003-08-31
• ___ hand — 2003-05-25
• Two-___(court situation) — 1996-01-05