Which 19th-century retail innovation is widely credited as the foundation of modern visual merchandising and revolutionized how products were displayed to consumers?

The retail landscape has evolved dramatically over centuries, with visual merchandising playing a crucial role in how products are presented to consumers. Behind today's elaborate store displays and strategic product placements lies a fascinating history of innovation and discovery. This poll explores a pivotal moment in retail history that forever changed how merchants showcase their wares and influence consumer purchasing decisions.

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The plate glass storefront window, pioneered by Aristide Boucicaut at Le Bon Marché in Paris (1852)
The rotating merchandise carousel, invented by Sebastian Werner in Vienna (1867)
The adjustable mannequin system, patented by Frederick Stockmann in Helsinki (1878)
The tiered display shelf configuration, developed by Harry Gordon Selfridge in London (1884)