Clay Balls

Scientists claim the world's first storage system are record-keeping clay balls from Mesopotamia.

Prehistoric CDs! Scientists have discovered the world's "very first data storage system" - 5,500-year-old clay balls unearthed in Iran that were used for record-keeping in Mesopotamia.

Novak Djokovic complains the blue clay makes it hard to judge the ball's bounce, while Rafael Nadal calls the surface a mistake. Maria Sharapova think it's unique, while a Canadian tennis player has called it slippery "Smurf" clay.

Scientists claim the world's first storage system are record-keeping clay balls from Mesopotamia.

Prehistoric CDs! Scientists have discovered the world's "very first data storage system" - 5,500-year-old clay balls unearthed in Iran that were used for record-keeping in Mesopotamia.

Novak Djokovic complains the blue clay makes it hard to judge the ball's bounce, while Rafael Nadal calls the surface a mistake. Maria Sharapova think it's unique, while a Canadian tennis player has called it slippery "Smurf" clay.