Which ancient civilization created the first widespread system of outdoor advertising that resembles modern billboards, carving messages on stone slabs along major trade routes around 3000 BCE?

Throughout history, advertising methods have evolved dramatically. While we often think of billboards as modern marketing tools, their origins trace back much further than most realize. This poll explores a fascinating turning point in early advertising history that transformed how merchants promoted their businesses and connected with potential customers in ancient civilizations.

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Ancient Egypt
Mesopotamia (Ancient Babylon)
Ancient Greece
Indus Valley Civilization