The greatest tools in history do more than solve common problems. They redefine and reshape humanity. The wheel provided us with motion, the printing press with freedom of thought, and the microchip ...

Archaeologists have traced the earliest lock-and-key mechanism back to ancient Mesopotamia around 4,000 BCE. Made from wood ...

When rolled on a moist clay tablet, these engravings left low-relief markings, signifying that the object's owner authorized ...