The barter system is where people trade goods or services for other goods and services without the use of money. For example, someone may trade grain for a fur coat, or someone may trade food in exchange for help with a harvest. Bartering can be tricky because both people must agree that the trade is fair.
The barter system was used when fur traders would trade items for furs with Indigenous people in exchange for knowledge of the land, food, and shelter. Indigenous people would also trade between Indigenous Nations.