The Credit?! (4)

As humans were attempting to standardize units, and language people also started to exchange what they had to meet their unattended needs. This came about when people understood that they could not meet all their requirements on their own.

Education needed experts to teach and farming required skillful laborers. Butchery was needed to help us with meat, and the miller was needed to bless us flour. But there was a question, "How can trade services and yet also have a mutual exchange?"