Mark Twain:
Science Fiction Technology and Ideas
Samuel Langhorne Clemens (b. 1835 d. 1910) is an American author and humorist, better known by his pen name, Mark Twain.
Invention/Technology Source Work (Publication Date)

Electrified Fence
A wire fence carrying an electrical charge sufficient to deter crossing the boundary.

A Connecticut Yankee in King Arthur's Court (1889)


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