Historical clue formulations

• Cat-___-tails (whip) — 2013-12-23
• Center for cat-tails? — 2012-03-02
• Cat-tails connector — 2010-06-27
• Cat-___-tails — 2007-01-10
• Cat-___-tails — 2006-12-03
• Cat-tails connection? — 2002-12-28
• Cat-___-tails — 1996-07-15