Which product holds the Guinness World Record for the 'longest-running product advertising slogan' still in active use?

The Guinness World Records has documented numerous extraordinary achievements in product development and marketing throughout history. From the largest product launches to the most successful advertising campaigns, companies have pushed boundaries to earn their place in record books. Test your knowledge about these remarkable product-related world records that have shaped consumer history and marketing strategies worldwide.

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Maxwell House Coffee's "Good to the Last Drop" (since 1915)
De Beers' "A Diamond is Forever" (since 1948)
Wheaties' "Breakfast of Champions" (since 1933)
Coca-Cola's "It's the Real Thing" (since 1969)