Historical clue formulations

• Gradually disappear — 2011-10-06
• Fade away — 1999-08-11
• Fade away — 1999-02-20
• Dissolve — 1997-03-23
• Fade away — 1997-03-15
• Slowly disappear — 1996-06-01
• Fade away — 1996-05-01
• Slowly fade — 1995-08-17
• Fade away — 1994-03-26