In what era was barter?

The introduction of barter The history of human using money formed the earliest material exchange era. In primitive society, people bartered for the materials they needed, such as a sheep for a stone axe. Is the most primitive way of trading, face-to-face access to goods or food, each take what they need and benefit from each other. However, this concept of barter declined with the birth of money, and human beings began to trade with money and buy different goods.