Who invented simple machines and when?

Simple machines were not invented by a single individual; rather, they were developed over time through the contributions of various ancient civilizations. The concept dates back to at least 250 BC, with Greek philosopher Archimedes known for his work on levers and pulleys. Other simple machines, such as the wheel, incline plane, and wedge, can be traced back to early human history, with evidence of their use in ancient Egypt and Mesopotamia.