Where does this come from, and can I check it?

The message What hath God wrought travelled over wires between Washington and Baltimore. The figure is taken from Library of Congress, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Yes. It sits on the Technology shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Samuel Morse sent the first long-distance telegraph message in 1844

The message What hath God wrought travelled over wires between Washington and Baltimore

On 24 May 1844, Samuel Morse transmitted the famous phrase over an experimental magnetic telegraph line connecting the United States Capitol in Washington, D.C., to a train depot in Baltimore, Maryland. Using short and long electrical pulses representing letters, Morse code allowed instant long-distance communication over wire networks for the first time in human history.

Where this comes from

Library of Congress

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Tags: telegraph, morse, telecoms

Samuel Morse sent the first long-distance telegraph message in 1844: the short answers

Where does this come from, and can I check it?: The message What hath God wrought travelled over wires between Washington and Baltimore. The figure is taken from Library of Congress, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.