Which retail innovation, first implemented in 1916, fundamentally transformed American shopping by allowing customers to select their own products without clerk assistance?

Before the modern shopping experience we know today, retail went through fascinating evolutionary stages that shaped our consumer culture. This poll tests your knowledge about a pivotal moment in retail history that fundamentally changed how people shopped and how products were sold. The innovation discussed here revolutionized access to goods for millions of Americans and established business practices still used in modern retail chains and omnichannel strategies.

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The mail-order catalog system by Montgomery Ward
The self-service grocery store concept pioneered by Piggly Wiggly
The department store model introduced by Macy's
The shopping mall concept developed by the Southdale Center