In Australia, torn money is valued by the percentage of the bill remaining
A penny is more expensive to make than it is worth (since 2006)
Salt was used as currency in ancient Rome
Theodore Roosevelt opposed putting "In God we Trust" on money, fearing it would cheapen the motto to link it to money
Bitcoin is legal tender in El Salvador
US currency is unique in being all the same size and color, forcing blind and visually-impaired Americans to depend on someone else to identify the denomination of each bill.
Until the 19th century, solid blocks of tea were used as money in Siberia.
A quarter is produced at the cost of 2.5 cents to the U.S. government
The Aztec people often used cocoa beans as currency.
The smallest unit of Bitcoin is a 'Satoshi' (in honor of the Bitcoin founder). 1 Bitcoin = 100,000,000 Satoshis
currency is constantly being destroyed --- The US shreds 7,000 tons of worn out currency each year
90% of all United States currency is contaminated with cocaine. 100% of bills from Detroit, Michigan; Boston, Massachusetts; Orlando, Florida; Miami, Florida; Los Angeles, California tested positive for the drug in 2009.
Pocahontas appeared on the back of the $20 bill in 1875.
There are 293 ways to make change for a dollar.
A $1 bill typical has lifespan of 18 months.