Historical clue formulations

• Commercial line — 2018-12-14
• "Coke is it!" or "Say 'Pepsi, please'" — 2017-09-05
• "Think different," e.g. — 2015-01-11
• "A diamond is forever," e.g. — 2012-05-20
• "Just for the taste of it" or "Just do it" — 2012-05-06
• Campaign staple — 2009-03-01
• Campaign feature — 2002-06-01
• Ad dressing? — 1999-04-08
• Campaign ad feature — 1999-01-12
• "Just say no," for instance — 1997-10-21
• Motto — 1996-04-22