IT may be safely said that no one of the wonder-working agencies of the nineteenth century, of an importance in any degree equal to that of the Electric Telegraph, is so little understood in its ...

On a brisk afternoon in Washington, D.C., on December 13, 1844, an unusual sight drew curious onlookers to the U.S. Capitol. A tangle of wires, wooden poles, and odd-looking electrical boxes had been ...

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