Some other fun facts about U.S. Currency:
- The only woman to appear on paper money (so far) was Martha Washington.
- African Americans have appeared on three different coins (Booker T. Washington, George Washington Carver, and Jackie Robinson).
- Coins stay in circulation about thirty years.
- The U.S. Mint released the first coins in 1793.
- Bills are made of 75% cotton, and 25% linen.
- Iron ink is used when printing bills. When a cashier uses their special marker to validate the bill, it reacts to the iron in the ink, turning yellow.
- If a bill is counterfeit, there will be no iron in the ink, and the marker will turn it black.
Want to learn more about U.S, Currency and how it’s made? Check out some of our resources on Discovery Education Streaming!