How did the development of currency change trade?

Money allows people to trade goods and services indirectly. In a barter economy, a buyer must find a seller in search of the exact goods that he/she has to offer. With the gold standard, the money supply would be tied to the amount of gold the country possessed, and a restricted money supply could impede economic growth.

Explanation:

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.