Historical clue formulations

• Optimistic — 2016-05-14
• Pink — 2015-02-27
• Optimistic — 2011-12-10
• Overly optimistic — 2010-05-14
• Promising — 2009-06-10
• Promising — 2001-08-26
• Optimistic — 1996-10-30
• Pink — 1994-05-29