Which advertising innovation, introduced around 1900, is credited with transforming products from generic commodities into branded experiences with distinct personalities?

Before digital marketing, before television commercials, and even before radio jingles, there were advertising techniques that transformed how products were marketed and sold. This poll explores a pivotal historical moment in advertising that changed consumer culture forever. Test your knowledge about one of the most significant shifts in how products were presented to the public in the early 20th century.

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Psychological appeal advertising, pioneered by Edward Bernays who applied his uncle Sigmund Freud's theories to create emotional connections to products
Celebrity endorsement advertising, first used extensively when Queen Victoria publicly endorsed Cadbury chocolates
Scientific advertising, developed by Claude Hopkins who introduced product testing demonstrations in print ads
Comparative advertising, created by Montgomery Ward to directly challenge Sears Roebuck catalog offerings