Commerce preceded civic discourse in every historic town square

The agora wasn't built for Socrates. It was built so people could buy salted fish from Lake Copais and Corinthian pottery. The Roman Forum started as a marketplace; civic buildings came later, because that's where people already gathered. Arab bazaars and souks were surrounded by coffeehouses where ideas circulated after goods changed hands. Aztec Tlatelolco served commerce and civic purpose together. Spanish colonial law prescribed central plazas with commercial functions, a pattern visible across Latin America and California's mission towns. New England greens, California plazas, Texas courthouse squares -- all put commerce at the center, with civic life organized around it.

The pattern holds across cultures and centuries. People built accordingly because they intuited the relationship: trade in goods came before trade in ideas. Even the phrase "marketplace of ideas" is a metaphor that acknowledges this -- open intellectual exchange borrowed its name from the commercial institution that made it possible.

Speech was the byproduct, not the purpose. Civic life was the exhaust from an engine running on necessity and commerce.

Source claim: Across world history, civic discourse in town squares emerged as a byproduct of daily commerce, not as its purpose.