Which ancient civilization invented the first known system of retail receipts and transaction records that functioned similar to modern point of sale systems?

The ancient world wasn't just about monuments and wars - it was also home to sophisticated commercial systems! Ancient civilizations developed remarkable retail innovations and trading networks that laid the groundwork for modern commerce. This trivia question explores how ancient merchants managed their sales and inventory before the digital age. Test your knowledge of ancient retail practices!

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Mesopotamians, who used clay tablets with cuneiform script to record transactions, inventory, and customer accounts as early as 3500 BCE
Ancient Egyptians, who recorded sales on papyrus scrolls with hieroglyphic tallies of goods exchanged and payments received
Ancient Greeks, who developed the ostrakon system where pottery shards were inscribed with transaction details and stored for record-keeping
Ancient Romans, who pioneered the tabulae system of wooden wax tablets connected by rings to record multi-page sales and inventory