Historical clue formulations

• "In ___?" — 2015-01-03
• "Are you in ___?" — 2012-02-19
• "Indoors ___?" — 2010-09-17
• "Are you in ___?" — 2010-06-22
• "Are you in ___?" — 2009-11-15
• "Are you in ___?" — 2008-08-27
• "Are you in ___?" — 2008-06-09
• "Are you in ___?" — 2000-04-01
• "In _____?" — 1994-11-26