A new study suggests that the wheel may have been invented by copper miners in the Carpathian Mountains around 3900 B.C., using techniques from structural mechanics to trace the evolution of the wheel and axle.
The Sumerian language was the first to have a written form around 3500 BCE, using a system called cuneiform. This script evolved over time, and was later used by other languages like Akkadian, Babylonian, and Assyrian.
