Evolution of Money in Human History The evolution of money in human history has been a gradual process spanning thousands of years, driven by the need for more efficient trade beyond direct exchange. Barter System Direct exchange of goods and services in prehistoric societies, likely tens of thousands of years old. Commodity Money Around 9000–6000 BCE, standardized mediums like livestock, grains, shells (e.g., cowrie shells around 1200 BCE), and salt emerged. Metal Coins The first standardized m