How Did Early People Trade Without Money?

Imagine you're a farmer and want some fruit, but you only have corn. A fruit seller only has apples, they don’t want corn. So maybe you agree to trade your corn for their apples. That’s the barter system! People traded things they needed without using money. Sometimes it worked well, like trading one apple for two eggs. But other times, someone might not want what you have, and that's when problems started.