What is used as currency today that is not related to our money system

Ok lets just say Cattle, which throughout history and across the globe have included not only cows but also sheep, camels, and other livestock, are the first and oldest form of money. With the advent of agriculture also came the use of grain and other vegetable or plant products as a standard form of barter in many cultures. British pound

The British pound is the world's oldest currency still in use – it's 1,200 years old. Dating back to Anglo-Saxon times, the pound has gone through many changes before evolving into the currency we recognise today.

Explanation:

the first two years of american revolution was not very encouraging for the patriots since the british were far superior in sea power, arms and troops.