Otis Singleton
The electric telegraph was invented in 1837 by William Fothergill Cooke and Charles Wheatstone in England, with Samuel Morse simultaneously making parallel innovations in the United States. Morse, a New York University professor, began working on his version of the telegraph in 1832 and developed Morse code—a set of sounds that correspond to letters of the alphabet—in 1835. The Morse system became the standard for international communication in 1865. The electric telegraph superseded optical telegraph systems in the mid-19th century, and was the first telecommunications technology of the industrial age, facilitating the growth of railroads, consolidating financial markets, and reducing information costs within and between firms.
| Characteristics | Values |
|---|---|
| Inventor of the electric telegraph | Samuel Morse, with parallel innovations by William Fothergill Cooke and Charles Wheatstone |
| Year of invention | 1837 |
| Location of invention | United States |
| Prior work | Morse was a student at Yale College and had written about his interest in lectures on electricity |
| Inspiration | Michael Faraday's electromagnet |
| Support | Financial support from Congress; assistance from Leonard D. Gale, a professor of chemistry |
| Business model | Morse split his patent right to gain the support of influential partners |
| First message | "What hath God wrought?" sent on May 24, 1844 |
| Impact | The telegraph allowed instant communication over vast distances for the first time in human history |
| Use cases | Sending urgent messages, train control systems, distress calls |
| Drawbacks | Repetitive stress injury for operators, confusion due to incorrect decoding of messages |
| Obsolescence | The rise of the telephone, radio, television, and the internet made telegraphy obsolete |
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What You'll Learn
- The first electric telegraph was invented in 1837 by William Fothergill Cook and Charles Wheatstone in England
- Samuel Morse invented the Morse system and code in 1838
- The heliograph is a telegraph system using reflected sunlight for signalling
- The telegraph superseded optical telegraph systems in the 1840s, becoming the standard way to send urgent messages
- The telegraph's dominance was replaced by radio, telephone, television, and the internet
The first electric telegraph was invented in 1837 by William Fothergill Cook and Charles Wheatstone in England
The electric telegraph was invented in 1837 by Sir William Fothergill Cooke and Sir Charles Wheatstone in England. Cooke was born in 1806 and Wheatstone in 1802. The pair co-invented the Cooke-Wheatstone electrical telegraph, which was patented in May 1837.
Cooke was an English inventor who, in 1836, attended a demonstration of the use of wire in transmitting messages. This led him to begin experimenting with telegraphy. He had also served in the Indian Army for five years and studied medicine in Paris and Heidelberg. He was knighted in 1869 and granted a civil-list pension in 1871, before his death in 1879.
Wheatstone was an English physicist who, in 1834, gave an account to the Royal Society of experiments on the velocity of electricity. He was appointed professor of experimental philosophy at King's College, London, in the same year. He had a keen interest in electricity from a young age and was married to Emma West in 1847. He died in 1875.
The Cooke-Wheatstone telegraph was the first commercial needle telegraph system and the most widely used of its type. It was an important invention as it allowed instant communication over vast distances for the first time in human history. However, it was still too costly for general purposes. The single-needle apparatus, which became a practical instrument, was produced in 1845.
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Samuel Morse invented the Morse system and code in 1838
The electric telegraph was a groundbreaking invention, allowing instant communication over vast distances for the first time in human history. The idea behind the telegraph originated in the early 1700s, and by 1798 a rough system was used in France. The Chappe optical telegraph, invented by Claude Chappe in the late 18th century, was used extensively in France and European nations occupied by France during the Napoleonic era.
Samuel Finley Breese Morse, born on April 27, 1791, in Charlestown, Massachusetts, was an American painter and inventor. He developed an electric telegraph between 1832 and 1835 and then, with his friend Alfred Vail, invented Morse Code in 1838. Morse was the son of a Congregational clergyman and geographer, Jedidiah Morse. Although he was an indifferent scholar, he developed an interest in electricity, which was then little understood. He also enjoyed painting, becoming a portrait painter before turning his attention to his invention in 1837.
Morse Code is a system for representing letters of the alphabet, numerals, and punctuation marks by arranging dots, dashes, and spaces. The codes are transmitted through either a telegraph machine or visual signals. Morse's breakthrough came from the insights of Professor Leonard Gale, a chemistry professor at New York University, who was a friend of Joseph Henry. With Gale's help, Morse introduced extra circuits or relays at frequent intervals and was soon able to send messages over 16 km (10 miles) of wire, a much longer distance than the 12 metres (40 feet) achievable by his first model.
Morse and Vail chose a factory house as their demonstration site, pulling two miles (3.2 km) of wires through an elaborate scheme. The first public transmission, with the message, "A patient waiter is no loser", was witnessed by a mostly local crowd. Morse travelled to Washington, D.C., in 1838, seeking federal sponsorship for a telegraph line but was unsuccessful. He then went to Europe, seeking sponsorship and patents, but discovered that Cooke and Wheatstone had already established priority.
In 1843, Morse built a telegraph system from Washington, D.C., to Baltimore with financial support from Congress. On May 24, 1844, the first message, "What hath God wrought?", was sent. The Morse system became the standard for international communication in 1865, using a modified form of Morse's code that had been developed for German railways. Electrical telegraphs were used by railway companies to provide signals for train control systems, minimizing the chances of collisions.
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The heliograph is a telegraph system using reflected sunlight for signalling
The heliograph is a telegraph system that uses reflected sunlight to transmit coded messages. It is a precursor to modern wireless communication systems. The heliograph's ancient roots date back to 405 BC when Ancient Greeks used polished shields to signal during battles. Over time, the heliograph evolved into more complex devices, with the French employing them during the 1870-71 siege of Paris and the British using them in the Anglo-Zulu War in 1879.
In the 19th and 20th centuries, heliographs were widely used for military purposes, especially in areas without established electrical telegraph systems. The most extensive heliograph network was in Arizona and New Mexico during the Apache Wars, where it proved ideal due to the clear air and mountainous terrain. Heliographs were also used by the insurgent Afghan mujahideen forces during the Soviet invasion of Afghanistan in 1978-1979.
The heliograph works by using a mirror to reflect sunlight and transmit coded messages to a receiving station. The mirror can be adjusted to direct the sunbeam to the desired target. The flashes of sunlight are produced by a keying mechanism that tilts the mirror, creating flashes that can be detected and transcribed into a message.
Heliographs played a crucial role in the development of long-distance communication, demonstrating the potential of harnessing sunlight for signalling. They were an important innovation in the history of human communication, paving the way for more sophisticated technologies and shaping modern telecommunications.
While the use of heliographs may have faded with the advent of radio, television, and the internet, they hold a unique place in the evolution of communication technology. The development of the electrical telegraph, with pioneers like Samuel Morse and Alessandro Volta, further contributed to the advancement of long-distance communication, eventually leading to the widespread use of wireless communication systems that dominate the world today.
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The telegraph superseded optical telegraph systems in the 1840s, becoming the standard way to send urgent messages
The idea of the telegraph—sending electric signals across wires—originated in the early 1700s, and by 1798 a rough system was used in France. In 1753, an anonymous writer in the Scots Magazine suggested an electrostatic telegraph. In 1774, Georges-Louis Le Sage created an early electric telegraph with a separate wire for each of the 26 letters of the alphabet. However, its range was limited to the space between two rooms in his home.
In 1832, New York University professor Samuel Morse began working on his version of the telegraph. By 1835, he had developed Morse Code, a set of sounds that corresponded to particular letters of the alphabet. By 1838, he had presented his concept to the US Congress. While Morse was not the first person to think of the idea, he was the first to gain political backing and develop a business model for his telegraph.
The electric telegraph started to replace the optical telegraph in the 1840s, becoming the standard way to send urgent messages. The optical telegraph systems, such as semaphores, had several limitations. They were dependent on good weather and daylight to work and could only transmit about two words per minute. In 1846, France decided to replace its optical telegraph system with an electric one, but it took a decade before it was fully taken out of service.
The electric telegraph allowed instant communication over vast distances for the first time in human history. By the latter half of the 19th century, most developed nations had commercial telegraph networks with local telegraph offices in most cities and towns. The public could send messages, called telegrams, to anyone in the country for a fee. The electric telegraph also had a significant impact on the railway system. It was used to provide signals for train control systems, minimizing the chances of trains colliding with each other.
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The telegraph's dominance was replaced by radio, telephone, television, and the internet
The electric telegraph was a groundbreaking innovation in communications, allowing instant communication over vast distances for the first time in human history. The technology was developed in the mid-19th century and, for more than 100 years, was the principal means of transmitting printed information by wire or radio wave. However, the telegraph's dominance was gradually replaced by newer technologies such as radio, telephone, television, and the internet.
The development of the telegraph can be traced back to early studies of electricity and electrical phenomena, which were known to travel at great speed. The idea behind the telegraph—sending electric signals across wires—originated in the early 1700s, and by the late 18th century, the word "telegraph" was used to describe an optical semaphore system developed in France. This visual telegraph system was widely used during the Napoleonic era.
In the mid-19th century, the electric telegraph started to replace optical telegraph systems. One of the earliest electrical telegraphs was invented by Samuel Thomas von Sömmering, a German physician, anatomist, and inventor, in 1809, based on an earlier design by Spanish polymath and scientist Francisco Salva Campillo. Another early electric telegraph was realised by Georges-Louis Le Sage in 1774, with a separate wire for each letter of the alphabet, although its range was limited to two rooms in his home. The first commercial needle telegraph system, the Cooke and Wheatstone telegraph, was invented in 1837 and became the most widely used system of its type.
The Morse system, invented by Samuel Morse in 1838, became the standard for international communication in 1865. The heliograph, a variation of the telegraph using reflected sunlight for signalling, was also used in areas without electrical telegraph systems. At the turn of the 20th century, all long-distance communication depended heavily on the telegraph, and British submarine cable systems dominated the world system.
However, the dominance of the telegraph gradually faded as newer technologies emerged. Radio became easy to use and popularised, and the telephone quickly became the fastest way to communicate person-to-person. After television was perfected and well-developed, it became the dominant form of mass communication technology. The internet came next, rolling newspapers, radio, telephones, and television into a single far-reaching information medium. By the 1990s, dedicated telegraphy networks had become largely obsolete due to the rise of the internet and email.
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Frequently asked questions
The electric telegraph was invented in 1837 by William Fothergill Cooke and Charles Wheatstone in England, with Samuel Morse developing a similar system in the United States around the same time. Morse's system became the international standard in 1865.
The Morse system is a form of electric telegraphy that uses a set of sounds or dots and dashes that correspond to particular letters of the alphabet. This system is known as Morse Code, named after Samuel Morse.
The electric telegraph works by sending an electric current through a wire. Breaking the current in a particular pattern denotes letters or phrases.
The electric telegraph revolutionised communication by allowing messages to be sent and received anywhere in just minutes. It facilitated the growth of railroads, consolidated financial and commodity markets, and reduced information costs within and between firms.
