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Germany’s 1924 100-trillion-mark banknote carried an extraordinary face value of 100,000,000,000,000 marks. The note reads Hundert Billionen Mark because the German word Billion corresponds to & … read more

During World War II, nickel became an important material for military production. Beginning in 1942, the U.S. Mint changed the five-cent coin’s composition to an alloy containing 35% silver. The … read more

In 1990, the $100 bill became the first U.S. banknote to receive two modern anti-counterfeiting upgrades: an embedded security thread and microscopic printing. The features were introduced to combat i … read more

During the Civil War, Americans began hoarding metal coins, creating a serious shortage of everyday change. The federal government responded by issuing small paper notes called fractional currency. Th … read more

After the attack on Pearl Harbor, the United States issued special currency for Hawaii in 1942. The notes featured brown seals and large “HAWAII” overprints, making them easy to identify. … read more