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Navajo code talkers Enigma Jade cipher machine Purple cipher machine frequency distribution for plaintext and its repeated-key Vigenère cipher German ADFGVX cipher. DES flow diagram Vigenère table
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A botanical illustration from the Voynich manuscript, a codex, scientific or magical text in an unidentified language, in cipher; end of the 15th or during the 16th century (?).
Codes, Secrets, and Ciphers Quiz
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Abstract vector hi speed internet technology background
History of Technology Timeline
A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England
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Paul Revere. "The bloody massacre perpetrated in King Street Boston on March 5th 1770 by a party of the 29th Regt.," engraved by Paul Revere. Boston Massacre.
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An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
11 Egyptian Gods and Goddesses
Scolex (head) of the tapeworm Taenia solium. The hooks of the scolex enable the tapeworm to attach to the intestinal wall.
Uninvited Guests: The 7 Worst Parasitic Worms
Lake Mead (the impounded Colorado River) at the Hoover Dam. The light-coloured band of rock above the shoreline shows the decrease in water level in the first few years of the 21st century.
6 Lakes That Are Drying Up
NBA Lakers Celtics Finals Kevin Garnett shooting.
10 Great Sports Rivalries
Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays
Is Cinco de Mayo Mexico's Independence Day?
Close up of praying mantis walking on stone ground against a blurred background in Japan
6 Animals That Eat Their Mates

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Photos

Navajo code talkers
Enigma
Jade cipher machine
Purple cipher machine
frequency distribution for plaintext and its repeated-key Vigenère cipher
German ADFGVX cipher.
DES flow diagram
Vigenère table
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Key People

Agnes Meyer Driscoll
American cryptologist

Related Quizzes and Features

Quiz
A botanical illustration from the Voynich manuscript, a codex, scientific or magical text in an unidentified language, in cipher; end of the 15th or during the 16th century (?).
Codes, Secrets, and Ciphers Quiz