Historical clue formulations

• Long time follower? — 2016-03-19
• "Long time ___" — 2014-03-30
• "Long time ___!" — 2013-08-05
• Long time follower? — 2013-03-03
• It comes after a "long time" — 2009-09-13
• "Long time ___!" — 2007-04-01
• ___-um — 2004-04-03
• Long time follower — 2002-09-29
• "Long time ___" — 2002-01-09
• "Long time ___!" — 2001-06-13
• ___-um (gnat) — 2000-03-29
• "Long time ___" — 1998-09-24
• Long time follower — 1997-10-31
• ___-um (gnat) — 1996-08-23
• "Long time _____!" — 1995-06-25