The Complaint Tablet to Ea-nasir is a historical artifact dating back to approximately 1750 BCE, discovered in the ruins of Ur. It records a scathing message from a disgruntled customer named Nanni to a merchant named Ea-nasir regarding a delivery of sub-standard copper ore and the rude treatment of Nanni's servant. The tablet became an internet sensation as people marveled at the fact that human nature—specifically the impulse to leave a negative review—has remained unchanged for nearly four millennia. It is frequently used to parody modern customer service frustrations, 'Karen' culture, or the universal experience of receiving a product that doesn't match the description.