Answer: his copper ax.
Step-by-step explanation:
Neolithic period is known to the period in which the human beings passed from the stone period to the copper period; They started manufacturing tools made of this material for agriculture and hunting, and they started a sedentary lifestyle.
A man discovered in the Andes named Ötzi is known as Ice Man. It was calculated that it is more than 5000 years old and belongs to the late Neolithic period. The clues that the scientists had were the tools he was carrying at the time of his death; a copper ax, a knife, and various arrows.
I hope this information can help you.