What Is Money? 10 Surprising Facts from Its History

History of Money has been a part of human civilization for thousands of years, evolving from barter systems to the modern digital currencies of today. The concept of money has changed over time, but its basic function remains the same: a medium of exchange for goods and services.

What Is Money? In ancient times, people relied on barter systems to conduct trade, exchanging goods and services directly with each other. This system had limitations, as not all goods were easily divisible or portable, leading to the development of commodity money, such as shells, beads, and precious metals, which were widely accepted as a medium of exchange.

Over time, paper money emerged, backed by precious metals and issued by banks. This allowed for more efficient trade and easier transport of wealth, but it also led to issues with counterfeiting and inflation.

In the modern era, digital currencies have emerged, starting with Bitcoin in 2009. Cryptocurrencies use cryptography to secure and verify transactions, eliminating the need for centralized intermediaries such as banks. This has led to increased security and privacy for users, as well as faster and more efficient transactions.

While digital currencies are still in their early stages, they have already disrupted traditional banking systems and have the potential to revolutionize the way we conduct financial transactions in the future.

The history of money is a testament to our ever-evolving society and our need for efficient and reliable systems of exchange. From bartering to cryptocurrencies, the evolution of money has been a long and fascinating journey, with no end in sight.

HISTORY OF MONEY: From Barter to Bitcoin

Image by Alina Kuptsova from Pixabay

So far, we have discussed cryptocurrencies and how they measure up as ‘money’ as we currently define it. But has money always been the same?

In order to understand where cryptocurrencies might fit in, we should try to understand the history of money itself—its successes, failures, and technological innovations. It is a fascinating topic, as there are so many interesting tidbits and common misunderstandings to straighten out.

The definitive writing on the subject is A History of Money from Ancient Times to the Present Day by Glyn Davies who spent nine years researching the book as Emeritus Professor of Banking and Finance at the University of Wales. His work is summarized by his son Roy Davies on the Exeter University website. Much of this section is based on the timeline outlined by Roy, used with his permission. Errors and omissions are mine. I hope you’ll find this section as fascinating as I did while researching this book.

10 Surprising Facts About the History of Money You Probably Didn’t Know

Here are 10 interesting facts about the history of money:

  1. The earliest known form of currency was commodity money, which involved using everyday objects like shells or beads as a medium of exchange.

  2. The first standardized coinage was created by the Lydians in the 7th century BCE, featuring a lion’s head on one side and a bull’s head on the other.

  3. The use of paper money can be traced back to China in the 7th century CE, where merchants used paper receipts for their transactions.

  4. The world’s first banknotes were issued by the Bank of Sweden in 1661, made from copper plates with detailed engravings.

  5. In the 19th century, the gold standard became the dominant monetary system, where the value of a currency was fixed to a specific amount of gold.

  6. The use of credit cards began in the 1950s, with the first universal credit card, the Diners Club card, issued in 1950.

  7. In 2009, the first cryptocurrency, Bitcoin, was introduced, using blockchain technology to create a decentralized and digital form of currency.

  8. The largest banknote ever printed was the 100 trillion dollar note issued by the Reserve Bank of Zimbabwe in 2009, during a period of hyperinflation.

  9. The world’s oldest surviving bank is Banca Monte dei Paschi di Siena in Italy, founded in 1472.

  10. The United States dollar is the most widely used currency in the world, accounting for approximately 61% of all known central bank foreign exchange reserves.

10 Surprising Facts About the History of Money You Probably Didn't Know

What is Money: Forms of Money

The concepts and eras I want to touch on are:

  • Barter (let’s exchange valuable things)
  • Commodity money (the money is the valuable thing)
  • Representative money (the money is a claim on the valuable thing)
  • Fiat currency (the money is completely de-linked from any valuable thing)


It is common knowledge that before money existed transactions were carried by exchanging goods when both parties agreed on the deal. ‘Sir, your five ugly old sheep for my twenty bushels of fine corn’. But barter is difficult. It is very rare that you want something the other person has, and at the same time, they want something you have, and that you’re both prepared and able to make a trade. Economists call such a rare situation a ‘double coincidence of wants,’ and aside from market days in subsistence economies this situation almost never occurs.

So, the argument goes, money was invented to lubricate the deal. Money is something that everyone is happy to accept in exchange for other things, so it serves as the intermediary asset for the times when you don’t have something that the other person wants. In summary, the inefficiency of barter gave rise to money.

This elegant argument seems intellectually neat. Unfortunately, however, there is not a shred of evidence for it. It is pure fantasy—the textbooks are wrong! When you hear someone talk about money being invented to replace barter, do please educate them or talk to someone else.

Money solving the inefficiencies of barter is a myth popularized in 1776 by Adam Smith in The Wealth of Nations. Ilana E Strauss discusses this in an amusing and eye-opening read, ‘The Myth of the Barter Economy’ published in The Atlantic, in which she quotes Cambridge Anthropology Professor Caroline Humphrey in a 1985 paper, ‘Barter and Economic


‘No example of a barter economy, pure and simple, has ever been described, let alone the emergence from it of money, … All available ethnography suggests that there never has been such a thing’.

Economies developed based on mutual trust, gifts and debt or social obligations— ‘Have a chicken now, but please remember this for later’.

Early communities were small and stable, and individuals tended to grow up with each other and know each other well. Reputation within a community was crucially important, so people didn’t tend to renege on their word. But people still had to keep some sort of record of debts or favors owed.

Trading (the simultaneous exchange of non-monetary goods) did exist, but mainly occurred where there was a lack of trust, for example with strangers or enemies, or where there was a strong possibility that debt wouldn’t be remembered or couldn’t easily be repaid, such as with travelling merchants.

The emergence of money to solve the problem of repaying a debt or favor makes more sense than the emergence of money as a solution to the double coincidence of wants. Indeed, David Graeber details the existence of debt and credit systems before money, which itself appeared before barter, in his fascinating and influential book Debt: The First 5,000 Years.

Commodity Money

History of Money: Commodity Money

With commodity money the physical token that is transacted is itself valuable, for example grain, which has intrinsic value, or precious metals, which have extrinsic value.

Good forms of commodity money have a stable and known value and are relatively easy to keep and exchange, or ‘spend’. They also need to be consistent, and a standardized unit makes things easier. Examples are standardized quantities of grain or cattle, which have intrinsic value by being edible, and precious metals or shells, which have extrinsic value by being both scarce and beautiful.

Note: An argument that cryptocurrency proponents like to use is that the tokens should be valuable because they are scarce (‘There will only be 21 million bitcoins ever, so that is what makes them valuable!’). This is not a solid argument. Something may be scarce, but that doesn’t mean it is, or should be, valuable. There must be one or more underlying factors that make it desirable—beauty, utility, something else. And these underlying factors must create demand for the item. The two underlying factors in Bitcoin that create demand are:

1. It is the most recognized instrument of value that can be transmitted across the internet without needing permission from specific intermediaries.

2. It is censorship resistant.

Representative Money

Representative money is a form of money whose value is derived by being a claim on some underlying item, for example a receipt from a goldsmith for some gold they are safekeeping. The receipt may be passed to another party to transfer that value. You could say that the value of the token is backed by the value of the underlying asset. Warehouse accounts or receipts (or ‘tokens’) are backed by the value of the goods contained in the warehouse and are good examples of representative money.

Representative money differs from commodity money in that it relies on a third party (e.g., the manager of the warehouse or the goldsmith) to be able to supply the underlying item on redemption of the tokens, so there is some counterparty risk: What if the third party fails?

Representative money tokens were similar to bearer bonds, where the person holding a piece of paper was entitled to reclaim the value of the underlying asset (sometimes on demand, sometimes on a due date).

These tokens were used as we use cash today to settle transactions, and were a stepping stone between use of commodity money (e.g., precious metal coins) and fiat currency.

History of Money: Fiat Currency

Commodity money was gradually replaced by representative money which in turn has now almost entirely been replaced by ‘fiat money’. All major recognizable sovereign currencies now are fiat. Fiat (pronounced fee-at, Latin for ‘let it be done’) is money because legislation says so, rather than because it has a fundamental or intrinsic value. Fiat money neither has intrinsic value nor is it convertible.

Statements on banknotes often say something along the lines of ‘I promise to pay the bearer on demand the sum of …’ but you won’t get very far if you go to the issuer of the fiat currency—usually the central bank—and say, ‘Hey, give me some of the underlying asset back for this’. At best you will get a new banknote.

So how and why are fiat currencies valuable? Two main reasons:

1. They are declared by law as legal tender, meaning that in that legal jurisdiction it must be accepted as valid payment for a debt.

Therefore people use it.

2. Governments accept only their own fiat for tax payments. This gives fiat currencies a fundamental usefulness, as everyone needs to pay tax.

The Economist newspaper has described cryptocurrencies as having fiat characteristics as it is simply declared so, but to date, cryptocurrencies have not been declared legal tender in any nation. We will discuss legal tender later in the book.


The history of money is a fascinating topic that spans thousands of years and countless civilizations. From the earliest forms of bartering to the rise of modern banking systems, money has played a critical role in shaping human society and facilitating trade and commerce. The evolution of money has been marked by significant milestones, including the invention of coins and paper currency, the development of central banking systems, and the emergence of cryptocurrencies like Bitcoin. As we continue to push the boundaries of what money can be and how it can be used, it’s important to reflect on the rich history of this fundamental human invention and the many ways it has shaped our world.