Lincoln and the cipher operators - 1 views
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Abbey Roberts on 01 Sep 15Describes the personal relationship between President Abraham Lincoln and those who encoded military telegraph messages during the Civil War
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Top Secret: the Stager ciphers in the Civil War - 0 views
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The cipher described in this article was so secret that even President Lincoln "was denied access to the codes."
Two Centuries On, a Cryptologist Cracks a Presidential Code - 0 views
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An interesting account of how technology can now help "crack" codes which were once thought to be impervious.
President Obama on Twitter: "Cool clock, Ahmed. Want to bring it to the White House? We... - 0 views
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About the same time we talked about the Ahmed Mohamed story during class yesterday, this happened.
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