By: HISTORY.com Editors

1844

Samuel Morse demonstrates the telegraph with the message, “What hath God wrought?”

Published: July 20, 2010Last Updated: May 27, 2025

In a demonstration witnessed by members of Congress, American inventor Samuel F.B. Morse dispatches a telegraph message from the U.S. Capitol to Alfred Vail at a railroad station in Baltimore, Maryland. The message—“What Hath God Wrought?”—was telegraphed back to the Capitol a moment later by Vail. The question, taken from the Bible (Numbers 23:23), had been suggested to Morse by Annie Ellworth, the daughter of the commissioner of patents.

Morse, an accomplished painter, learned of a French inventor’s idea of an electric telegraph in 1832 and then spent the next 12 years attempting to perfect a working telegraph instrument. During this period, he composed the Morse code, a set of signals that could represent language in telegraph messages, and convinced Congress to finance a Washington-to-Baltimore telegraph line. On May 24, 1844, he inaugurated the world’s first commercial telegraph line with a message that was fitting given the invention’s future effects on American life.

Just a decade after the first line opened, more than 20,000 miles of telegraph cable crisscrossed the country. The rapid communication it enabled greatly aided American expansion, making railroad travel safer as it provided a boost to business conducted across the great distances of a growing United States.

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Citation Information

Article Title
Samuel Morse demonstrates the telegraph with the message, “What hath God wrought?”
Website Name
History
Date Accessed
March 27, 2026
Publisher
A&E Television Networks
Last Updated
May 27, 2025
Original Published Date
July 20, 2010