The Elisha Otis reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Elisha Otis

In 1852, Elisha Graves Otis (1811 – 1861) invented a safety device to prevent hoisting machinery from falling. From there, he went on to invent the first passenger elevator, without which skyscrapers would be far less practical.

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