May 5, 2023, Posted by: Logan Wells

When and how did interest rates start being used?

A Brief History of Interest Rates

Interest rates have been a part of human history since ancient times, but understanding when and how they started being used can help us appreciate their importance in modern economies. In this article, we will explore the historical roots of interest rates and how they have evolved over time.

Origins in Ancient Mesopotamia

The concept of interest rates can be traced back to ancient Mesopotamia, around 3,000 BCE. Back then, the Sumerians had a well-developed system of credit and loans, with interest rates recorded on clay tablets. These rates were typically set by the ruler and varied depending on the type of loan, such as agricultural loans or commercial loans. The purpose of interest rates was to encourage the repayment of loans and to compensate the lender for the risk of not being repaid.

Ancient Greek and Roman Times

Interest rates continued to be used in ancient Greece and Rome. In both societies, interest rates were typically set by individual lenders and borrowers, with no central authority controlling them. However, there were some regulations in place. For example, in ancient Rome, the legal maximum interest rate was 12%, but in practice, rates often exceeded this limit. The concept of interest rates was so important in these societies that the famous philosopher Aristotle even wrote about the morality of charging interest, arguing that it was unnatural and exploitative.

Interest Rates in the Middle Ages

During the Middle Ages, interest rates were often met with suspicion and disdain, particularly in Europe. This was due to the influence of the Catholic Church, which viewed charging interest as a sin, labeling it "usury." As a result, the practice of charging interest was largely limited to Jewish moneylenders, who were not bound by the same religious restrictions. However, the demand for credit persisted, leading to the development of creative ways to circumvent the prohibition of interest, such as charging fees for loans or disguising interest as a form of rent.

The Rise of Modern Banking and Interest Rates

As the world moved into the Renaissance and the Age of Exploration, the practice of charging interest became more widely accepted. The rise of international trade created a demand for credit, and the emergence of modern banking allowed for the more widespread use of interest rates. The first central bank, the Bank of Sweden, was established in 1668, and it played a crucial role in setting interest rates in the country. This set the stage for the development of other central banks and the use of interest rates as a key tool in monetary policy.

Interest Rates and Inflation

As economies grew and became more complex, the relationship between interest rates and inflation became increasingly important. Inflation is the rate at which the general level of prices for goods and services is rising, and it affects the purchasing power of money. Central banks use interest rates as a tool to control inflation, with the goal of maintaining price stability. By raising interest rates, central banks can reduce the amount of money in circulation, thus helping to control inflation. Conversely, lowering interest rates can stimulate economic growth by encouraging borrowing and spending.

Interest Rates and the Global Economy

Interest rates play a critical role in the global economy, as they influence the flow of money between countries. When interest rates in one country are higher than in another, investors are more likely to move their funds to the country with the higher rates, in search of better returns. This can have a significant impact on exchange rates, as increased demand for a currency will push up its value relative to other currencies. In this way, interest rates help to shape the global economic landscape.

The Impact of Interest Rates on Everyday Life

Interest rates have a direct impact on our everyday lives, affecting the cost of borrowing money, the returns on our investments, and the prices of goods and services. When interest rates are low, borrowing becomes more affordable, which can lead to increased spending and economic growth. However, low-interest rates can also lead to higher inflation, as increased demand for goods and services drives up prices. On the other hand, high-interest rates can make borrowing more expensive, potentially leading to reduced spending and economic stagnation. As such, finding the right balance in interest rates is crucial for promoting economic stability and growth.


Interest rates have been used since ancient times as a means of facilitating trade and managing risk. From their origins in Mesopotamia to their central role in modern economies, interest rates have evolved and diversified in response to the changing needs of societies. Today, interest rates remain a key tool for central banks and governments in managing their economies, and they continue to have a profound impact on our daily lives.


Logan Wells

Logan Wells

I'm an experienced banker with a passion for helping others achieve financial success. I have been in the banking industry for over 10 years, and have developed a deep understanding of the complexities of the banking system. I'm constantly looking for innovative solutions to make banking easier and more efficient for everyone.

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