Money & Currency
From cowrie shells to gold coins — how humans invented money and changed the world forever.
Commodity Money
Before coins, people used commodities as money: cowrie shells in Africa and Asia, salt in Rome (the word 'salary' comes from 'sal' = salt), cattle, grain, and even tea bricks in Central Asia.
Good commodity money had to be durable, divisible, portable, and scarce. Precious metals — especially gold and silver — fit perfectly.
The First Coins
The first coins were minted in Lydia (modern Turkey) around 600 BCE. Made of electrum (gold-silver alloy), they were stamped with official marks guaranteeing their weight and purity. This was revolutionary — it standardized value and made trade vastly easier.
- •Money solved the problems of barter by serving as a medium of exchange
- •Money has three functions: medium of exchange, store of value, unit of account
- •Trust is the foundation of money — coins worked because people trusted the issuer
- •India's ancient Karshapana coins date to ~600 BCE
Money Changed Everything
Money enabled complex economies, taxation, wages, and savings. It allowed wealth to be stored and transferred across time and space. Money is arguably humanity's greatest invention — it's the technology that makes all other economic activity possible.
💡 Did You Know?
The word 'rupee' comes from the Sanskrit 'rūpya' meaning 'wrought silver.' India's currency has roots stretching back thousands of years.