Which packaging innovation, introduced in 1915, is credited with revolutionizing retail by allowing customers to identify a product by its silhouette alone for the first time?

Before the 20th century, most products were sold in bulk from barrels or generic containers. The evolution of packaging design revolutionized retail by creating brand identity, extending product shelf life, and changing how consumers interact with products. Test your knowledge about a pivotal moment in packaging design history that transformed retail forever and set the stage for modern branding strategies.

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The Coca-Cola contour bottle
Campbell's soup can
Kellogg's cereal box
Heinz ketchup octagonal bottle