Which advertising innovation of the 1920s revolutionized product marketing by introducing the concept of creating consumer 'needs' rather than simply advertising product features?

Before digital marketing and television commercials dominated advertising, companies had to find innovative ways to reach consumers. The early 20th century saw revolutionary changes in advertising techniques that shaped how products were marketed. Test your knowledge about a pivotal moment in advertising history that changed how companies connected with consumers and established modern marketing principles.

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Edward Bernays' psychological marketing campaigns that linked products to emotional fulfillment and social status
The introduction of radio jingles that used catchy tunes to make brand names memorable
P.T. Barnum's sensational promotional techniques that emphasized product uniqueness
The development of mail-order catalogs that expanded retail reach beyond urban centers