Which cultural tradition-inspired retail event generated the highest single-day sales in global e-commerce history, reaching $38.4 billion in 2021?

Cultural festivals and traditions significantly impact retail strategies worldwide. Brands that authentically engage with cultural celebrations often see dramatic sales increases and improved customer loyalty. This trivia question explores how a major retailer leveraged traditional cultural knowledge to create one of the most successful seasonal marketing campaigns in retail history, transforming an ancient tradition into a modern shopping phenomenon.

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Singles' Day (China's 11.11 shopping festival derived from an anti-Valentine's celebration)
Diwali Dhamaka Sales (India's festival of lights shopping season)
El Buen Fin (Mexico's 'Good Weekend' inspired by Black Friday)
White Day (Japan's March 14th gift-giving tradition following Valentine's Day)