Which promotional technique did ancient Roman merchants first popularize that is considered the precursor to modern retail loyalty programs?

The ancient world had sophisticated commercial systems that laid the foundations for modern retail. From the bustling agoras of Greece to the complex trade networks of Mesopotamia, ancient civilizations pioneered retail concepts we still use today. This poll tests your knowledge about an innovative promotional technique used in ancient Roman retail that influenced modern advertising practices.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Tesserae - clay tokens given to repeat customers that could be exchanged for discounts on future purchases
Praecones - hired professional shouters who would announce daily specials in marketplaces
Libellus - papyrus vouchers distributed during festivals offering time-limited promotions
Mercatus raffles - public drawings where purchase receipts could win imported luxury goods