This is it: Coke with no sugar

This year marks the 30th anniversary of the world's third-most popular soft drink, Diet Coke. Introduced in 1982, Diet Coke was the first extension of the Coke trademark and, at the time, The Coca-Cola Company's most carefully researched product. Since 1984, the soda has remained the most popular diet soft drink on the planet. Here's a retrospective look at the iconic brand.

Credit: The Coca-Cola Company (image), Jason Henry McCormick/CBS (text)