Daily CryptogramA free daily cryptogram puzzle paired with a historical almanac.

Daily Cryptogram, Crossword & GamesPlus History, Phrase Origins, and Stories Worth Reading

A new puzzle every day!

Decode the hidden quote by substituting letters. Each letter in the cryptogram represents a different letter of the alphabet.

Solve Today's Cryptogram

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Yesterday's Answer: "We cannot solve our problems with the same thinking we used when we created them in the first place long ago" — Albert Einstein

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This Day in History

  • 1512
    culture

    Sistine Chapel ceiling exhibited

  • 1952
    science

    First hydrogen bomb tested

  • 1960
    birth

    Tim Cook Born

View all on this day

Phrase Origin

"Cup of joe"

The most popular theory traces this nickname for coffee to Secretary of the Navy Josephus "Joe" Daniels, who in 1914 banned alcohol aboard U.S. Navy ships. The strongest drink available became coffee, which sailors supposedly started calling "a cup of Joe" in protest. However, some linguists believe it simply derives from "joe" as slang for the common man.

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A Brief History of Cryptograms

A brief history of cryptograms. Cryptic code writing can be traced back to Sparta in about 600 BC, used to send military strategy and secrets. It was commonly used for military purposes throughout the years and still until this day. Then around 900 AD monks started using them for entertainment purposes. Edgar Allan Poe was fascinated with them and challenged readers to send him ciphers. The specific English term "cryptogram" was coined around 1849 from Greek roots meaning "hidden word."

Enigma MachineThe Enigma machine was invented by German engineer Arthur Scherbius in 1918 and was used extensively by Nazi Germany during World War II to encrypt military communications. Its complex system of rotors and plugboards made it seemingly unbreakable, until Allied codebreakers at Bletchley Park, led by mathematician Alan Turing, cracked its code — a breakthrough widely credited with shortening the war. For the longest time I thought the Enigma is where cryptograms originated. An historical biographical drama called The Imitation Game (2014) is about Alan Turing and his team breaking the Enigma code. Oscar winning movie and worthwhile to see. Highly recommended!

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November 2026