The oldest known written customer complaint is a 3,750-year-old clay tablet from ancient Ur, where a furious customer named Nanni accused the merchant Ea-nasir of delivering sub-standard copper — proof that bad reviews are almost as old as writing itself
Around 1750 BCE in Ur, a customer named Nanni complained in clay about the bad copper sold to him by the merchant Ea-nasir. It is the oldest known written customer complaint, and several others were found in Ea-nasir's house. The behaviour behind a one-star review, nearly four mi…