Best United States Dollar Bill Collection - US Banknote Collection
What gives a dollar bill its value? - Doug Levinson
United States Dollar Coin: Martin Van Buren
The United States dollar is the official currency of the United States and its territories per the United States Constitution since 1792. In practice, the dollar is divided into 100 smaller cent (¢) units, but is occasionally divided into 1000 mills (₥) for accounting. The circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars.