Which ancient mythological practice is considered the earliest documented form of consumer market research?

Throughout history, mythology and folklore have profoundly influenced consumer behavior and retail practices. Ancient civilizations often based their purchasing decisions on mythological beliefs, creating some of the world's first market research patterns. This trivia explores how mythological systems influenced early consumer behavior and what we can learn from these ancient retail insights for modern market research applications.

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Haruspicy - Etruscan practice of reading animal entrails to predict which goods would sell best in marketplaces
Oracle bone divination - Chinese practice of burning bones to determine consumer preferences
Pythian prophecies - Greek custom where priestesses would predict upcoming retail trends
Runic casting - Norse method for merchants to determine optimal pricing strategies