The U.S. dollar is the currency most used in international transactions. Several countries use the U.S. dollar as their official currency, and many others allow it to be used in a de facto capacity. It's known locally as a buck or greenback.
A variety of currencies circulated in China during the Republic of China era, most of which were denominated in the unit 'yuan'. In 1948 the People's Bank of China issued a unified currency known as the Renminbi or 'people's currency'. Yuan in Chinese literally means a 'round object' or 'round coin'.
