Throughout history, various types of money have been used to facilitate trade and commerce. Some types of money are considered "soft money," meaning that their value is not backed by a physical commodity or by a strong centralized authority. Soft money has been used in many different forms, such as seashells, cowrie shells, salt, wampum beads, and paper money. While some soft money systems lasted for centuries, others collapsed due to a variety of reasons. In this article, we'll explore ...