Historical clue formulations

• Demand — 2016-04-08
• Request — 2014-01-20
• Request — 2013-08-20
• Invite, as trouble — 2011-09-07
• Request — 2007-06-12
• Request — 2006-03-05
• Requisition — 2002-01-23
• Request — 1999-01-29
• Solicit — 1997-03-23