The Purloined Letter | Compare and Contrast

1840s: Samuel Morse, American portrait painter, invents Morse Code, a code of dots and spaces that the United States government uses to keep messages secret from its political enemies.

Today: The United States constructs increasingly more sophisticated methods of keeping messages secret, and employs mathematicians to try to break the codes of other countries.

Early 1840s: Frenchman Louis Daguerre, a scene-painter, invents the daguerreotype, a method that uses a lens and light, along with a chemical reaction, to capture...

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