It's midnigth in Paris and I need money quickly.The bank are closed, but outside there's a cash machin. I put in my bank card, enter my PIN (personal identification number) and ask for 500 euros. The cash machin sends a message to my bank in Washington D.C. My bank replies to the message and says I have the money in bank account. After a few short moments, I receive my cash.
Nowadays, we move money around the world at high speed. I can get money from a bank anywhere in the world or I can pay my hotel bill with a credit card.In fact some people think we don,t need money at all.
Before money, people bought and sold goods with animals. But you can't carry animals around your neck or in a bag so people needed something small.