Answer: barter
Explanation:
In trade, barter (derived from baretor) is a system of exchange where participants in a transaction directly exchange goods or services for other goods or services without using a medium of exchange, such as money.
The end of the Peloponnesian War was when the 421 Truce treaty signed
The Reformation created division within Europe. In Spain most people were Catholic. In the northern countries most people were Protestant. The Holy Roman Empire was a patchwork of small kingdoms, some Catholic.
