Historical clue formulations

• Intermediary — 2016-12-09
• Go-between — 2012-07-15
• Link — 2010-07-02
• Link — 2004-06-25
• Affair — 2003-05-17
• Go-between — 1998-07-22
• Go-between — 1998-03-12
• Contact — 1997-04-19