Which groundbreaking 1960s advertising campaign introduced the concept of 'Unique Selling Proposition' (USP) and featured the famous slogan 'We're only No. 2, so we try harder'?

Throughout history, certain advertising campaigns have completely revolutionized marketing approaches and created lasting impacts on consumer culture. This trivia question explores one of the most influential advertising campaigns of the 20th century that fundamentally changed how companies positioned their products and connected with consumers on an emotional level. Test your knowledge of marketing history and the pioneering campaigns that shaped the advertising landscape we know today.

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Avis Rent a Car's 'We Try Harder' campaign
Volkswagen's 'Think Small' campaign
Marlboro's 'Marlboro Man' campaign
De Beers' 'A Diamond is Forever' campaign