Why did humans start using symbolic currency like notes, coins and gold?

730 views

I often think about the fact that the objects we use to represent currency have no actual practical utility outside of their representation of “money”. But why did we begin using this system in place of exchanging good and services with one another? At what point did humans see fit that rounded metals and rectangular sheets of paper had an assigned representation of value that could be exchanged for goods and services?

In: Economics