Banking began as a loan written in clay and grew into a layered system of trust, because each time people lost faith in a bank’s promise, society added another safeguard such as central banks, deposit insurance and supervision. Open a banking app and the number on screen feels solid, but it is mainly a promise recorded in several connected computer systems. It promises to make payments for you, other banks promise to accept them, the central bank stands behind settlement, and the government may insure part of the deposit.
The history follows one object that keeps changing shape: a clay tablet, a merchant ledger entry, a paper note, a cheque, a plastic card and finally a phone. This article walks through the video’s five acts and fifteen chapters.
Watch the full video here, or skip to the breakdown below.
The 15 chapters at a glance
- The grain loan that made tomorrow tradable (1:43)
- The banker behind the table (6:59)
- The paper that crossed Europe without coins (11:44)
- The family that built a financial network (16:43)
- Amsterdam turns money into an entry (22:12)
- The bank that lent to a country (26:50)
- The note that became money (31:14)
- The banking giant that was allowed to fail (36:17)
- The panic that created the Federal Reserve (41:09)
- The run that changed the rules (46:14)
- The card that put a bank in every shop (51:21)
- The dollars that escaped America (56:51)
- The mortgage machine that nearly broke the world (1:02:09)
- The branch moves into the phone (1:08:49)
- The moment a bank creates money (1:15:11)
1. The grain loan that made tomorrow tradable
A farmer in ancient Mesopotamia could understand debt without understanding money. Seed was needed before the harvest, and food before animals gave birth or a caravan returned. A temple, palace or wealthy household could supply barley or silver now and receive more later. That was the first job of banking: moving resources through time.
The tablet recorded how the future would be divided, and many banking contracts still contain the same structure: a principal, a repayment date, an agreed return, witnesses and a consequence for non-payment. One surviving tablet from the early second millennium BCE records six minas of silver, roughly three kilograms, owed to an Assyrian merchant named Ashur-idi, with part due by the next harvest and interest running monthly if payment was late.
None of this needed a building or a vault. It needed surplus, a trusted record and some way to enforce the promise.
2. The banker behind the table
An ancient market held coins from several cities, rulers and metal standards. A coin could be underweight, clipped, mixed with cheap metal or stamped by a distrusted ruler, and a merchant who took the wrong one could lose part of the sale. Money changers built a business on that uncertainty. In the Greek world they worked at the trapeza, the table that gave banking its name.
The banker weighed metal, recognized foreign issues, checked for counterfeits and quoted exchange rates. This was banking as judgment: the customer saw pieces of metal, and the banker saw origin, purity, demand and whether someone else would accept each coin tomorrow. Someone who could identify money was a sensible person to guard it, and someone holding deposits could make payments for customers. The business moved from the storehouse to the market table.
3. The paper that crossed Europe without coins
Coins added weight, attracted thieves and could turn into unfamiliar money after the next border. Medieval banking solved this by separating the payment from the metal. A merchant gave money to a banker in one city and received a written instruction tied to another banker elsewhere, then collected local currency at the destination.
This was the bill of exchange, which combined a payment, a currency conversion, a delay and a credit relationship in one piece of paper. The delay mattered because messages and people moved slowly, and the exchange rate could include the banker’s return. That let credit work at a time when religious limits made openly charging interest hard for many. The system needed disciplined records, trusted managers and a structure that could control several branches without modern communication.
4. The family that built a financial network
Giovanni di Bicci de’ Medici founded the Medici Bank in Florence in 1397. The Medici did not invent bills of exchange, branch banking or careful bookkeeping. Their importance came from combining existing tools into a network serving merchants, rulers and the church across Europe. Money earned through exchange and credit became property, influence, marriages, art and public works, and the family and bank protected each other’s reputation.
Branches operated in centers including Rome, Venice, Geneva, Bruges and London at different times, each as a partnership with local managers who shared in the results. That gave managers a reason to find business and control losses, and it limited the damage one branch could do to the rest. Letters carried balances, political news and exchange rates between cities. Bad years reveal which branch, trader or loan had been protected by reputation rather than sound judgment.
5. Amsterdam turns money into an entry
Early seventeenth century Amsterdam was crowded with coins that did not agree with each other, many worn, clipped or valued differently from one deal to the next. Trade was growing faster than the payment system beneath it. In 1609 the city created the Amsterdam Exchange Bank, the Wisselbank. Merchants brought approved coins and bullion and received a balance in its books, and large commercial bills were settled by moving balances between customers inside one municipal ledger.
That produced a cleaner form of money for wholesale trade, separated from the daily confusion of circulating coin. The silver could stay in the bank while commerce carried on above it. The system gained value because the unit in the ledger was trusted. The video also notes that secrecy around lending could weaken the money built on that ledger.
6. The bank that lent to a country
In 1694 the English government needed money for war with France. Taxes would arrive too slowly and its credit could not produce cheap loans on demand. William Paterson promoted a plan linking private subscribers to the state’s need. Investors raised 1.2 million pounds for the government, and the new Bank of England received a royal charter and banking privileges.
The arrangement captured a relationship that shaped modern banking: governments need banks to organize credit and payments, banks gain strength from serving governments and holding public debt, and each can place the other in danger. It took deposits, made loans and issued paper claims promising payment in coin. A surviving handwritten note from 1697 promised to pay the bearer 22 pounds, and because payment was owed to whoever held it, the note could pass from person to person. Banking now helped states move tax revenue from the future into the present.
7. The note that became money
Paper money solved a physical problem and created a psychological one. A gold coin could be weighed, while a banknote had value because someone elsewhere promised to honor it. Notes were lighter and easier to divide, and they let banks create more spendable claims than the metal in their vaults. That supported trade in ordinary years and became dangerous when people stopped trusting the promise together.
Private banks in Britain and the United States issued notes, so a customer had to judge the issuer as well as the amount. A note from a respected local bank might pass at full value, while one from a distant or doubtful bank traded at a discount. Printed money carried a hidden map of reputation, and merchants, brokers and newspapers tracked which banks were reliable. Counterfeiting pushed banks toward signatures, engraved images and special paper. The Bank of England’s limit on note issue was suspended in the crises of 1847, 1857 and 1866, and the promise of emergency notes often worked before the paper was needed.
8. The banking giant that was allowed to fail
Overend, Gurney and Company was known as the bankers’ bank. It discounted bills, buying short-term commercial claims for less than their final value and collecting when they matured, which put it close to the daily circulation of trade. Its reputation grew large enough to hide a change inside the firm. Managers moved from short, self-liquidating commercial paper into longer, riskier loans tied to ships, railways and speculative ventures.
Long risks were funded with money that customers expected to stay available. In 1865 the private partnership became a limited-liability public company and sold shares to investors who believed they were buying an established institution. In 1866 the firm failed and crowds formed outside its doors in London. The Bank of England had to decide whether saving the system required saving the firm that helped endanger it, and the chapter’s title gives the answer.
9. The panic that created the Federal Reserve
The United States argued about central banking from the start. The First Bank of the United States was chartered in 1791 and lost its charter in 1811. The Second Bank was chartered in 1816 and became a target of President Andrew Jackson before its charter expired in 1836. The fights involved constitutional power, regional interests and fear that a national bank would serve wealthy insiders.
The country developed through a mix of state banks, private notes, national banks, clearing houses and Treasury intervention. It financed rapid growth but kept producing moments when cash vanished from the places that needed it. Demand rose at harvest, reserves concentrated in big cities, and no permanent institution had a clear duty to supply emergency liquidity.
In October 1907 a failed attempt to corner the shares of United Copper damaged financiers and linked banks. Knickerbocker Trust suspended on 22 October after depositors withdrew nearly 8 million dollars. The call-money rate jumped from 9.5 percent to 70 percent that day and reached 100 percent two days later. J. P. Morgan became the private center of the response, gathering bankers in his library to decide which institutions to save. The episode pushed the country toward a permanent central bank.
10. The run that changed the rules
A bank balance matters most when income disappears. In the early 1930s American households faced unemployment, falling prices and waves of bank closures. Banks lost money on loans and securities, falling asset prices weakened collateral and depositors withdrew cash for fear of being locked out. Banks responded by calling loans and selling assets into falling markets, which made credit even harder to get. More than 9,000 American banks suspended operations between 1930 and 1933. There was no general federal insurance for ordinary deposits, and some savers recovered only part of their money after years of liquidation.
Lawmakers changed the rules. The Banking Act of 1933 created the Federal Deposit Insurance Corporation, and federal deposit insurance began in 1934 with limited coverage that later grew. If insured funds would be repaid even after a failure, running to the branch at the first rumor became less necessary. Authorities could transfer deposits, create a temporary institution and sell assets. Banking became easier to trust because the state absorbed part of the tail risk.
11. The card that put a bank in every shop
Consumer banking once took more effort than the purchase itself. A customer could pay cash, write a cheque, use store credit or arrange a loan at a branch, each within a limited network of trust. Plastic widened that network so a customer, merchant and bank could transact without knowing each other.
Diners Club launched a charge card in 1950 for participating restaurants, with customers expected to pay the balance rather than carry a revolving loan. American Express entered later in the decade. Banks wanted a product for everyday retail spending that could earn interest on carried balances. In 1958 Bank of America launched BankAmericard in Fresno, California, mailing activated cards to large numbers of customers instead of waiting for applications. The drop created scale and trouble at once: fraud, weak controls, confused customers and unpaid balances. Credit decisions also grew less personal, since a computer could reject an applicant without the conversation that once came with refusal.
12. The dollars that escaped America
A dollar does not need to sit inside the United States to function as a dollar deposit. After the Second World War, banks outside America increasingly took dollar deposits and made dollar loans. These balances were called Eurodollars even when the business happened beyond Europe, and the name described where the banking claim sat, not a new currency. A London bank could owe dollars to a customer and hold dollar assets without placing the transaction inside the American domestic system.
The market grew through trade, Cold War politics and regulation. Governments and companies wanted a currency accepted across borders, and the Soviet Union and other institutions had reasons to hold dollar claims outside American reach. European banks found offshore dollar deposits could support profitable lending. American interest-rate ceilings, capital controls and reserve requirements could make an offshore deal more attractive than a domestic one. Banking was becoming global faster than the public safety net around it.
13. The mortgage machine that nearly broke the world
For much of banking history, the institution making a loan expected to keep it, which gave it a strong reason to study the borrower. The modern mortgage market split those roles across a chain: a broker found the borrower, a lender originated the loan, an investment bank bought thousands of mortgages into securities, rating agencies graded the layers, investors supplied the funding and servicers collected payments. Insurance contracts and derivatives moved parts of the risk again. The chain tapped a far larger pool of money and widened the distance between the person approving a loan and the person who would suffer if it failed.
During the early and middle 2000s, house prices rose while mortgage credit reached borrowers who previously would have struggled to qualify. Some products began with low introductory payments that increased later, and some relied on weak documentation of income. Short-term confidence funded long-term assets until everyone asked for safety together.
Lehman Brothers entered bankruptcy on 15 September 2008. The Reserve Primary Fund, a money-market fund holding Lehman debt, fell below one dollar per share, and investors rushed out of money-market funds and short-term lending markets. American International Group faced huge collateral demands and received government support. The rescue made banks safer in measurable ways and exposed the hidden connections.
14. The branch moves into the phone
The branch once organized financial life around a place and a schedule. Deposits happened at a counter, loans across a desk, statements by post, and payments waited for opening hours and clearing time. Technology removed those delays layer by layer: mainframe computers, automated teller machines, payment cards in shops, telephone banking, home computers and finally the smartphone, which put the account beside messages, maps and work.
The visible bank became an interface. A customer can open an account, verify identity, deposit a cheque, borrow, freeze a card, buy an investment and send funds without meeting an employee. The convenience depends on a large physical and legal system behind the screen: data centers keep records, payment networks route instructions, banks hold reserves and settle with each other, and fraud systems examine location, device and spending history. New entrants, open-banking connections and instant payment systems now operate beside traditional accounts. The central question stays the same: who owes the money, what supports the promise, and what happens when the holder asks to move it?
15. The moment a bank creates money
A customer signs a mortgage and the bank credits the seller’s account. Normally the bank does not open a vault and remove a matching pile of existing notes. It creates a new deposit and a new loan on its balance sheet. The customer owes the bank, and the bank owes the holder of the deposit. Spendable money has grown because a new bank liability can be used for payments.
The loan is an asset to the bank, since the borrower promises future payments, and the deposit is a liability, since the bank must transfer or repay it on instruction. Both entries appear together, so the bank creates money and debt at the same moment. It has not created a free house or new wealth by typing a number. The house already existed, and the borrower accepted a long obligation against future income. As the borrower repays principal, deposit money is extinguished by reversing the original relationship, and interest becomes income that covers costs, losses, capital and profit. Banks cannot create unlimited money without consequence.
The modern loan reaches into the future and brings spending power back with it.
Four thousand years of trust
A customer can close a banking app while the balance keeps moving through the economy, supporting a mortgage, a business loan, a government bond or a card payment. The account works because layers of trust sit behind the number: the bank’s assets, capital and records, plus the payment network, central bank, regulator and insured deposits. History added those layers after repeated failures.
Each improvement made banking more useful and gave the system another place for risk to hide. The customer sees a number, while the bank sees a promise about the future, and the distance between those two views is the history of banking.
FAQ
How did banking start?
It began in ancient Mesopotamia with grain and silver loans recorded on clay tablets. The lender gave up resources now, and the tablet recorded how the future would be divided.
What was a bill of exchange?
It was a written instruction that let a merchant pay in one city and have a banker elsewhere pay local currency later. It combined payment, currency conversion, delay and credit in a single piece of paper.
Why was the Bank of England created?
In 1694 the English government needed money for war with France. Investors raised 1.2 million pounds, and in return the new bank received a royal charter and banking privileges.
Why does the US have a Federal Reserve?
The country repeatedly faced moments when cash disappeared where it was needed, and no permanent body supplied emergency liquidity. The panic of 1907 pushed it toward a permanent central bank.
How does a bank create money?
When a loan is approved, the bank creates a new deposit and a new loan on its balance sheet at the same moment. The borrower owes the bank, and the bank owes the deposit holder.
What did deposit insurance change?
After the Banking Act of 1933 created the FDIC, insured deposits would be repaid even if a bank failed. That made running to the branch at the first rumor less necessary.
Keep reading
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- 15 Ways to Survive the Next Financial Crisis
