¿What is the meaning of barter?
Money.
Exchange proporcional.
Bills.
¿Why the people used barter?
Because money doesn't exist.
It was more easy to use.
Doesn't say.
The Aztecs used the cacao as money.
What others products were used as money?
Eggs and salt.
Pigs.
Coins.
Banks were invented in Mesopotamia.
