Early man invented this
Answers
The Acheulean Handaxe is arguably thefirst tool we hominids made, a triangular, leaf-shaped rock, probably used for butchering animals. The oldest yetdiscovered is from the Kokiselei complex of sites in Kenya, about 1.7 million years old.
Wooden thrusting spear, Schöningen, Germany, about 400,000 years old. By at least 500,000 years ago, early humans were making wooden spears and using them to kill large animals. Early humans butchered large animals as long as 2.6 million years ago.
Early stone, wood and bone tools kicked the whole thing off. Stone, wood, and bone tools were one of, if not the first thing that we invented in our ancient past. But, interestingly, they may well have been developed by our early ancestors as far back as over 3 million years ago.