Historical clue formulations

• Take ___ at — 2013-05-11
• Take ___ at (try) — 2011-06-06
• Take ___ at (try) — 2007-08-13
• Take ___ at (try) — 2006-11-01
• Take ___ at (try) — 2006-07-12
• Take ___ at — 2004-06-10
• Take ___ at — 2000-08-27
• Take ___ at (try) — 1998-09-28
• Take ___ at — 1997-12-26
• Take ___at — 1994-07-31