First Long-Distance Telegraph Message

On May 24, 1844, inventor Samuel F.B. Morse sent the historic telegraph message 'What hath God wrought' along a 40-mile line from the U.S. Capitol to Baltimore. This event revolutionized railroad operations by enabling real-time communication for train dispatching, safety signaling, and schedule coordination, reducing collisions and improving efficiency on expanding networks like the Baltimore and Ohio Railroad. The telegraph wires often followed railroad rights-of-way, forging an enduring partnership between the two technologies that lasted well into the 20th century.