How Samuel Morse’s Telegraph Wires Shrank the Planet: The Original "Internet"

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Morse keys, the Morse Code and the associated Morse telegraph system may seem outdated now but they revolutionised World communications and enabled messages to be sent almost anywhere very quickly.

Prior to electrical forms of communication it took many weeks for messages to be sent to the other side of the world. Australia was a very remote outpost of the British Empire for example. However with the introduction of the Morse telegraph system all this changed.

The story of the Morse telegraph is not merely a chronicle of copper wires and electrical pulses; it is a saga of artistic frustration, a chance encounter on a high-seas voyage, and a technological revolution that fundamentally altered the human experience of time and space.

Before Samuel Finley Breese Morse gave his name to a global communication standard, he was a man struggling to earn a living as an itinerant portrait painter.

His journey from a penniless artist to the halls of the United States Congress is a testament to the unpredictable nature of innovation and the irrepressable nature of an innovator.

The Artist’s Ambition and the European Pilgrimage

Samuel Morse was born in 1791, the son of a distinguished geographer and clergyman. Educated at Yale, he found himself drawn more to the canvas than to the pulpit or the laboratory.

By the late 1820s, Morse had established a reputation as a competent portrait painter, but he harboured a deeper ambition: he wanted to be a "historical painter," a creator of grand, epic scenes that would educate and inspire the young American republic.

In 1829, he set sail for Europe to immerse himself in the works of the Old Masters, believing that by mastering the European style, he could bring a new level of cultural sophistication back to his home soil.

His time in Europe, in London, Paris and Rome, was spent in a fever of observation. There's even a plaque in London on the house where he stayed.

Morse’s most famous artistic endeavour from this period was The Gallery of the Louvre, a massive canvas depicting the interior of the famous museum, filled with miniature, meticulously rendered copies of its most famous paintings.

He hoped this "painting of paintings" would serve as a portable museum for Americans who could not afford to cross the Atlantic.

However, while Morse was refining his brushstrokes, the world of science was undergoing a quieter revolution. Figures like André-Marie Ampère and Michael Faraday were uncovering the mysteries of electromagnetism—forces that would soon render Morse’s artistic dreams a secondary concern in the eyes of history.

The Voyage of the Sully and the Spark of Inspiration

The pivotal moment in the development of the telegraph occurred not in a laboratory as one might expect, but on a ship Sully whilst Morse was’s returning to New York from Europe in October 1832.

Among the passengers was Dr. Charles Thomas Jackson, a Boston physician with a keen interest in the latest scientific discoveries. During a dinner conversation, Jackson described recent experiments with electromagnetism, specifically the observation that an electric spark could be seen passing instantaneously through a long circuit of wire.

Although Morse was artist, he had a keen interest in some of the new technologies associated with electricity. He was struck by the thought that if electricity could travel seemingly without time over any distance, and if its presence could be detected at the far end of a wire, it could be used to carry information.

He famously remarked to Jackson, "If the presence of electricity can be made visible in any part of the circuit, I see no reason why intelligence may not be transmitted by it."

Before the Sully docked in New York, Morse’s notebooks were already filled with sketches of a recording telegraph. He had moved from the world of visual aesthetics to the world of binary pulses, envisioning a system where the interruption of a circuit could leave a permanent mark on a moving strip of paper.

The Lean Years and the Workshop of Necessity

Upon his return to the United States, Morse found himself in a precarious financial position. He was a professor of painting and sculpture at the newly established University of the City of New York (now NYU), but he was desperately poor.

His artistic career was flagging; his Gallery of the Louvre failed to attract the expected crowds or buyers. Driven by a mix of scientific curiosity and a need for financial salvation, he turned his quarters at the university into a makeshift workshop.

Morse’s first prototype was a beautiful mass of improvisation. Using a canvas-stretcher frame — literally a remnant of his painting career — he suspended an electromagnet that moved a lead pencil. The input wasn't a sleek telegraph key, but a 'portrule': a clunky metal bar device reminiscent of a barrel organ.

To send a message, Morse had to physically load metal 'teeth' into the bar like movable type. A single tooth represented a '1', while a tooth followed by a gap represented a '6'. It was a slow, mechanical process of 'typesetting' electricity, far removed from the rapid-fire tapping that would eventually define the era.

The Trio of Invention: Gale and Vail

Morse quickly realised that his understanding of electricity was insufficient to overcome the resistance of long wires, and also his mechanical ability was not sufficient as well.

In 1836, he sought the help of Leonard Gale, a professor of chemistry at NYU. Gale pointed Morse toward the work of Joseph Henry, who had discovered that using multiple batteries and a specific type of "intensity" magnet could send signals over miles rather than just yards.

Gale’s scientific contributions were the essential "connective tissue" that turned Morse’s vision into a viable engineering project.

The third member of the trio was Alfred Vail, a young graduate who witnessed one of Morse's early demonstrations.

Vail was a mechanical genius whose family owned the Speedwell Ironworks in New Jersey. He provided the funding, the precision craftsmanship, and arguably the most critical component of the system: the refined Morse Code.

While Morse had the original idea, it was likely Vail who realized that assigning the simplest codes (a single dot for 'E', a single dash for 'T') to the most frequently used letters in the English language would maximize the speed and efficiency of the system.

Together, in the winter of 1837-1838, they refined the apparatus until it could reliably transmit messages through three miles of wire coiled around the Speedwell factory.

It was also most probably Vail who invented the Morse key. His initial attempt was what he called the "Correspondent" which was very basics and consisted of a sprung metal contact.

The design was later refined to incorporate two bearings and a lever to enable the contact to be made more easily. This key was called the "Lever Correspondent."

It is intersting to note that despite the passage of around180 years since the development of the Lever Correspondent, that all hand keys today still follow the same basic pattern.

The Battle for Washington and the First Message

Despite their technical success, the path to a commercial telegraph was blocked by political skepticism. For several years, Morse lobbied Congress for an appropriation to build a long-distance demonstration line.

Many politicians viewed the idea of "sending lightning through wires" as a form of sorcery or a frivolous waste of public funds. It was not until the final hours of the 1843 Congressional session that a bill was passed, granting Morse $30,000 to construct a line between Washington, D.C., and Baltimore, Maryland.

The construction of the 44-mile line was a major undertaking and also a harrowing process. Morse initially tried to bury the wires in lead pipes, but the insulation failed.

On the advice of an assistant Ezra Cornell (who would later found Cornell University), Morse switched to stringing the wires on glass-insulated poles - an idea that was used for very many years afterwards. In fact power lines tese days use the same principles.

On May 24, 1844, Morse sat in the Supreme Court chamber of the U.S. Capitol and tapped out a message to Alfred Vail, who was waiting at the Mount Clare Station in Baltimore.

The message had been selected by Annie Ellsworth, the daughter of the Patent Commissioner, and it was a verse from the Bible - Numbers 23:23: "What hath God wrought."

The message was successfully received - telegraph had arrived, and the world would never be "slow" again.

The Iron Horse and the Lightning Wire

The very fast spread of the telegraph across the United States came about as a result of the expansion of the railroads in the USA.

It was a two-way relationship: the railroads provided the right-of-way for telegraph poles, and the telegraph provided the railroads with the ability to manage their traffic safely.

Before the telegraph, trains were run on a strict "time-interval" system; if a train was delayed, the entire line was paralyzed by uncertainty.

With the Morse telegraph system dispatchers could coordinate movements instantly, allowing for single-track lines to be used more efficiently whilst also drastically reducing the risk of head-on collisions.

This new speed of communication dealt a swift, terminal blow to the only other form of "fast communication of the era: the Pony Express.

While the image of the lone rider galloping across the plains remains a staple of American mythology, the reality was that the Pony Express was an economic failure that lasted only 19 months.

On October 24, 1861, the first transcontinental telegraph line was completed, linking Omaha to San Francisco. Two days later, the Pony Express officially ceased operations. As a measure of the success of the Morse telegraph system, a message that once took ten days to deliver by horse now arrived in seconds.

Global Expansion and the Outback Connection

The appetite for instant communication was not limited to North America. Across Europe, Asia, and the British colonies, the telegraph began to pull the disparate parts of empires together. In Australia, the telegraph played a literal "nation-building" role. The construction of the Australian Overland Telegraph Line in 1872 was a feat of staggering endurance, stretching 3,200 kilometers through the harsh, arid center of the continent to connect Adelaide in the south to Darwin in the north.

This line effectively ended Australia’s isolation from the rest of the world. One of the key repeater stations on this line was established at a site with a reliable water source, which was named Alice Springs (after the wife of the telegraph pioneer Charles Todd).

What began as a lonely outpost for telegraph operators eventually grew into the major regional hub of the Northern Territory. Around the globe, similar "telegraph towns" emerged, as the requirement for repeater stations every couple of hundred miles created a new geography of settlement.

Conquering the Abyss: The Undersea Cables

The most formidable barrier to a truly global network was the ocean. While land lines could be repaired relatively easily, a cable on the floor of the Atlantic was subject to immense pressure, corrosive saltwater, and the risk of being snapped during the laying process.

The visionary behind the first transatlantic cable was Cyrus West Field, an American businessman who refused to let repeated failures break his resolve.

The first attempt in 1858 was a short-lived success; a message of greeting was sent between Queen Victoria and President James Buchanan, but the cable’s insulation failed within weeks.

It took another eight years and the use of the Great Eastern, the largest ship in the world at the time, to successfully lay a durable cable in 1866. This achievement linked the stock markets of London and New York, creating the first truly global financial system and ensuring that the corners of the globe were permanently able to communicate.

The Ether and the Invisible Wire

By the end of the 19th century, the wire telegraph seemed to have reached its peak, but with the invention of radio, the concept of the Morse code was ideal for this new medium.

Guglielmo Marconi and other pioneers began experimenting with "Hertzian waves," as radio was called in the very early days.

The first radio transmissions were not voice-based but were essentially "wireless telegraphy." Using spark-gap transmitters, operators would create a series of electrical discharges that sent bursts of electromagnetic energy through the air.

These early transmissions were perfectly suited for Morse Code. Because the technology was not yet capable of carrying the complex waveforms of human speech, the simple on-off pattern of dots and dashes remained the most reliable way to communicate across the ether.

This "wireless" Morse became the lifeline of the maritime industry. For the first time, ships at sea were no longer isolated once they crossed the horizon. The sinking of the RMS Titanic in 1912 served as a tragic catalyst for international regulation, making the 24-hour monitoring of Morse distress frequencies (the 500 kHz band) a mandatory requirement for all large vessels.

The Code at War: Enigma and Intel

The 20th century saw the Morse telegraph transition from a tool of commerce to a weapon of war. During World War I and World War II, Morse code was the primary language of tactical and strategic communication.

On the front lines, "trench telegraphy" allowed for the coordination of artillery strikes. In the air and at sea, wireless Morse allowed commanders to direct far-flung fleets and squadrons.

A significant, though often hidden, part of the Morse story during World War II involves the interception of enemy communications. The famous German Enigma machine was used to encrypt messages, but those encrypted messages were still transmitted over the airwaves in Morse code. Allied "Y-stations" across Britain and the world were staffed by operators with exceptionally keen ears, tasked with scribbling down the endless streams of dots and dashes that would then be sent to Bletchley Park for decryption. The ability of the Allies to read "Ultra" intelligence—the decrypted Morse traffic of the German High Command—is estimated to have shortened the war by at least two years.

The Maritime Sunset and the Final Dot

Following the end of World War II, the telegraph began a long, slow retreat in the face of more advanced technologies.

The development of long-range radiotelephony allowed for voice communication across oceans, and the rise of satellite technology in the 1960s and 70s provided a level of reliability and bandwidth that Morse could never match.

By the 1980s, the "telex" and the fax machine had replaced the traditional telegram in the business world.

The final stronghold of the Morse telegraph was the sea. For nearly a century, the "Sparks" — the ship’s radio officer — was a vital member of any crew, tasked with the safety of the vessel and the relaying of messages in Morse.

However, the introduction of the Global Maritime Distress and Safety System (GMDSS) in the 1990s signaled the end. GMDSS relied on automated satellite and digital selective calling systems that did not require a human operator to know code.

On February 1, 1999, the international requirement for ships to use Morse code for distress calls was officially retired.

Today, Morse code lives on primarily as a cherished mode of communications for amateur radio operators and a legacy of a time when the world was first stitched together by the humble pulse of an electromagnet.

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Highlight Dates in Telegraph History

• 1832:   Samuel Morse conceives the idea of an electromagnetic telegraph during a voyage on the ship Sully.

• 1837:   Morse and Leonard Gale demonstrate a telegraph transmitting through 1,700 feet of wire.

• 1838:   Alfred Vail and Morse demonstrate the refined code and apparatus at the Speedwell Ironworks.

• 1843:   U.S. Congress appropriates $30,000 for a demonstration line between Washington D.C. and Baltimore.

• 1844:   The first formal message, "What hath God wrought," is transmitted on May 24.

• 1851:   The telegraph is first used for railroad dispatching on the New York & Erie Railroad.

• 1858:   The first (short-lived) transatlantic telegraph cable is completed.

• 1861:   The Transcontinental Telegraph is completed in the USA, leading to the end of the Pony Express.

• 1866:   Cyrus Field successfully lays a permanent, durable transatlantic cable.

• 1872:   The Australian Overland Telegraph Line is completed, establishing Alice Springs.

• 1901:   Guglielmo Marconi sends the first transatlantic wireless signal (letter 'S' in Morse).

• 1912:   The sinking of the Titanic leads to mandatory 24-hour Morse watchkeeping at sea.

• 1940–1945:   Morse code traffic serves as the primary medium for intercepting Enigma-encrypted messages during WWII.

• 1999:   International maritime regulations officially end the requirement for Morse code in distress communications.

  Written by Ian Poole .
  Experienced electronics engineer and author.

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