20 Major Inventions That Are Wrongly Attributed to Someone Else

Thomas Edison is often regarded as the sole inventor of the electric light bulb, but electric lighting had been under development for decades before his famous version. Humphry Davy had already demonstrated one of the first electric lamps in the early 19th century, and Joseph Swan had developed a functional incandescent light bulb before Edison’s commercial breakthrough. Edison’s true achievement was making the light bulb practical, durable, and integrated into a broader electrical system that people could actually use. 

Alexander Graham Bell remains, even today, the name most people associate with the telephone, and his patent and demonstrations played a pivotal role. However, Elisha Gray was working on similar technology around the same time, and Antonio Meucci had also developed earlier communication devices. It was Bell who won public recognition, as he had financial backing and held the patent. 

Guglielmo Marconi is often credited with inventing the radio, largely because he developed a wireless telegraphy system that was highly successful. The problem is that radio was built on the work of several researchers, including Nikola Tesla, Aleksandr Popov, Jagadish Chandra Bose, and others. It was Marconi who turned wireless communication into a powerful tool both commercially and for the general public, which helped cement his name in people’s memories.

Henry Ford is so closely associated with the automobile that we sometimes forget he wasn’t its inventor. Karl Benz had already built a gasoline-powered vehicle before Ford became the symbol of the automobile accessible to all. Ford’s genius lay in mass production, his pricing strategy, and his ability to make the car something that ordinary families could actually afford; thus, even though he did not invent the automobile, he helped integrate it into everyday life.

Ford is often credited with inventing the assembly line, but this is only partially true. Mass production already existed before him, and Ransom E. Olds had already used a rudimentary system to build cars more efficiently. Ford’s team perfected the moving assembly line to such an extent that it revolutionized the industry. The credit goes to him, because it was his version that captured everyone’s attention.

In the United States, the invention of the airplane is generally attributed to the Wright brothers, due to their powered, controlled flight in 1903. In Brazil, however, many attribute this invention to Alberto Santos-Dumont, whose 1906 flight in Europe took place in public and without a launch rail. This disagreement centers primarily on the definition of what should be considered the first true flight in an airplane. This example illustrates how much the attribution of credit for an invention can depend on the criteria one chooses.

The name Thomas Edison is often associated with the early days of cinema, but much of the actual technical work was carried out by those around him, particularly W.K.L. Dickson. On the other side of the Atlantic, the Lumière brothers also made major contributions to cinema, while Louis Le Prince likewise staked his claim to a place in the history of the first moving images. Edison’s laboratory was powerful, well-funded, and highly skilled at making an impression on the collective imagination. Cinema emerged through many different avenues, not just through that of a single famous inventor.

Some people often credit Edison with inventing electrical systems, simply because he was a renowned inventor in this field. In reality, Edison was an advocate of direct current, while Nikola Tesla and George Westinghouse played a central role in the rise of alternating current, and their system proved to be better suited for transmitting electricity over long distances. 

Robert Fulton is often credited with inventing the steamboat, as it was his vessel, the Clermont, that made steamboat transportation a commercial success in the United States. But John Fitch had built and operated steamboats years earlier, even going so far as to establish a passenger service in the 1790s. Fulton’s claim to fame lies in having made this venture profitable, not in inventing the underlying technology from scratch. It is he who has earned lasting renown, as success often makes more of a splash than being the first.

Whitcomb Judson is often credited with inventing the zipper, but his first “clasp locker” was impractical and never really caught on. The modern version that everyone is familiar with appeared later, thanks to Gideon Sundback, who improved the design by adding interlocking teeth and a smoother closing mechanism. Judson paved the way, but it was Sundback who created the practical zipper that became widely used. So, if someone claims credit for inventing the zipper, there’s a good chance they’re referring to the creator of the prototype rather than the person who made it functional.

Charles Darrow is often credited with inventing Monopoly, but the game’s origins date back to Elizabeth Magie’s “Landlord’s Game.” Magie created it to denounce land monopolies and demonstrate how rent systems could concentrate wealth—which is quite ironic given what the game has become. Darrow claimed credit for this idea with Parker Brothers several decades later. 

Thomas Crapper is often credited with inventing the flush toilet, mainly because his name has become firmly entrenched in popular culture associated with the bathroom. In reality, it was Sir John Harington who designed one of the first flush toilets in the late 16th century, and Alexander Cumming later patented a significant version featuring an S-trap in 1775. While Crapper certainly improved and popularized plumbing fixtures, he did not invent the basic flush toilet. 

Kevlar is often considered a corporate invention, as it was DuPont that made it famous. The chemist behind this major breakthrough was Stephanie Kwolek, who discovered this ultra-strong synthetic fiber while working for the company. Her work ultimately led to the development of bulletproof vests, more durable tires, protective gear, and many other essential applications. While DuPont reaped the fame, it is Kwolek who deserves the credit.

Isaac Singer is often credited with inventing the sewing machine, as it was his company that made it famous and brought it within reach of the general public. However, Walter Hunt had already built one of the first lockstitch sewing machines in the 1830s, and Elias Howe had patented a similar model shortly before Singer entered the market. Singer perfected the machine and turned it into a commercial success, which is why his name has gone down in history. 

Alfred Nobel invented dynamite, but the explosive at its core was developed by Ascanio Sobrero. Sobrero discovered nitroglycerin in 1847 and is said to have been horrified by its danger, going so far as to oppose its practical use. Nobel then found a way to stabilize nitroglycerin, making it safer to transport and handle. So while Nobel invented dynamite, the powerful component that made it up was not his own original discovery.

Galileo is often considered the inventor of the telescope, as he used it brilliantly for astronomy. The instrument itself first appeared in the Netherlands before Galileo improved it and turned it toward the sky. Hans Lippershey is generally credited with one of the very first patent applications for a telescope, but other Dutch spectacle makers may also have contributed to this invention. 

Johannes Gutenberg revolutionized Europe with his printing press, and this invention is well deserving of its fame. However, movable type had already existed in East Asia, notably Bi Sheng’s ceramic movable type in 11th-century China, followed by the metal movable type that appeared later in Korea. Gutenberg’s printing press was revolutionary in the European context because it effectively combined movable type, ink, paper, and printing technology. 

Richard Fiedler is credited with developing the modern flamethrower in the early 20th century, but the basic concept of projecting fire in combat dates back much further. In the 7th century, Kallinikos of Heliopolis is traditionally credited with creating Greek fire, an incendiary weapon used by the Byzantine Empire. Fiedler’s invention was a modern, portable version of this weapon, not the original idea of a weapon that projected flames. 

Elisha Otis is often credited with inventing the elevator, but elevators existed long before him. What Otis developed was a safety brake capable of preventing the elevator car from falling if the hoisting cable broke. This invention helped make high-rise buildings less intimidating and more practical. He didn’t invent the act of going up and down, but he made people much more willing to give it a try.

Many attribute the invention of the computer to a single person, depending on whether they are thinking of Charles Babbage, Alan Turing, John Atanasoff, or the ENIAC team. In reality, the term “computer” can refer to a theoretical machine, a mechanical concept, a digital electronic machine, or a general-purpose programmable system. That is why credit for its invention varies depending on which decisive milestone is being referred to. Computers did not emerge all at once; they are the result of a long chain of contributions by highly brilliant individuals.