In ancient Mesopotamia (circa 3000 BCE), which innovation served as an early 'point of sale' system for merchants to record transactions?

Step back in time to explore the fascinating world of ancient retail systems! Before modern cash registers and digital payments, ancient civilizations developed sophisticated methods for commerce and trade. This trivia challenges your knowledge about the earliest forms of 'point of sale' systems used by merchants thousands of years ago. Test your understanding of how our ancestors conducted business in the bustling marketplaces of antiquity!

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Clay tablets with cuneiform writing documenting goods exchanged and payments received
Papyrus scrolls with hieroglyphic receipts that customers would take home as proof of purchase
Wooden tally sticks with notches representing the value of items sold and payments made
Metal tokens stamped with merchant seals that functioned as store credit for regular customers