A Dollar is a basic unit of currency in several countries. This currency was originally based on precious metals, but is no longer so. For this reason it is now known as a fiat currency.
For precise payments, dollars are broken down into cents. One dollar is equivalent to 100 cents, so one cent is 1% of a dollar. For further simplification, coins valuing multiple cents are also available, so that paying with literal handfuls of pennies is not necessary.
- "Purchasing Power of Money in the United States from 1774 to 2008", translates the value of a dollar in one year to the value today or any year
- History of the Dollar Bill