Which ancient cultural retail tradition is considered the earliest precursor to modern-day seasonal holiday markets?

Traditional festivals have long been centers for commerce and cultural exchange. Throughout history, certain retail traditions emerged specifically to cater to cultural celebrations. This trivia question explores a fascinating intersection of retail history and cultural traditions that continues to influence specialized markets today.

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Sigillaria markets of Ancient Rome where clay figurines and gifts were sold during Saturnalia celebrations
Chinese Silk Road night bazaars that operated during Lunar New Year festivities
Egyptian Opet Festival markets where ceremonial goods were traded during annual Nile celebrations
Norse Midwinter trading posts that specialized in handcrafted goods during Yule festivities