YuanzhouCommunityLian

#PI# To put it another way, in the beginning, ancient humans used shells 🐚 for trade, and the shells 🐚 were money. As it became more widespread and the level of consensus increased, the shells became more valuable. Later, silver and gold also became money, where a piece of gold could be exchanged for a certain amount of silver or copper coins. Initially, gold and silver were just items, but later paper also became money, with a piece of paper being able to turn into 100 or 50. Did these need an exchange to increase their value? Back then, where were the exchanges? It was only because they cou
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