Which company holds the world record for the longest continuously used advertising slogan in history?

Brand slogans can make or break a company's identity in the marketplace. Some are forgettable, while others become part of our cultural lexicon. But which brands have shown extraordinary commitment to their messaging by maintaining the same slogan for record-breaking periods? This trivia question explores the fascinating intersection of marketing persistence and world records, challenging you to identify which company has remained faithful to its iconic tagline for the longest continuous period in advertising history.

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De Beers with 'A Diamond is Forever' (since 1948)
Maxwell House with 'Good to the Last Drop' (since 1915)
Coca-Cola with 'Enjoy Coca-Cola' (since 1904)
Avis with 'We Try Harder' (since 1962)