"Just Do It." It's one of the most iconic and effective advertising taglines of all time -- in 1999, Ad Age ranked it as the No. 2 ad slogan of the 20th century, behind only "A diamond is forever" -- and it debuted on July 1, 1988, 35 years ago this month.
HISTORY's Moment in Media: The Rise of Nike's "Just Do It" Tagline
