16 Inventions That Changed the World but Were Forgotten
Here's a look back at world-changing inventions that shaped history but quietly disappeared from daily life.
- Daisy Montero
- 6 min read

Some inventions changed the world when they first appeared but were later forgotten. From early communication tools to music players and even transport, they shaped how people lived. Even though we don’t use them today, their influence is still part of our lives.
1. The Telegraph
Museums Victoria on wikimedia commons
Before phones and the internet, the telegraph connected people across long distances almost instantly. It changed communication forever and made the world feel smaller. Messages that once took days could now arrive within minutes; yet today, they are mostly remembered in history books.
2. The Phonograph
Aleksandr Neplokhov on pexels
Thomas Edison’s phonograph brought recorded sound into homes for the first time. It gave people the ability to hear music and voices long after they were recorded, which was revolutionary at the time. This invention set the stage for the music industry as we know it today. Yet, the original machines are long forgotten, replaced by newer and sleeker technology.
3. The Pneumatic Tube System
Hexafluoride on wikimedia commons
Once used in cities and offices, pneumatic tubes could deliver messages and small packages within minutes. They worked by sending containers through pressurized air systems, which felt almost futuristic at the time. Many businesses relied on them to move documents quickly across large buildings or even between city blocks. Today, they’ve been replaced by email and digital logistics, leaving them as a quirky piece of history.
4. The Slide Rule
ArnoldReinhold on wikimedia commons
Long before calculators, engineers and scientists relied on slide rules to make precise calculations. These tools were essential for designing bridges, solving complex equations, and even helping send rockets into space. For generations, they represented accuracy and innovation in mathematics. Today, most people have never used one, as digital calculators and computers made them obsolete.
5. The Printing Telegraph
Jamshid Nurkulov on wikimedia commons
Unlike the Morse telegraph, this invention could print out messages directly in text. It made communication easier to read and paved the way for typewriters and later fax machines. At the time, it was a groundbreaking step toward modern written communication. However, it was soon overshadowed by faster and more efficient tools, leaving it largely forgotten.
6. The Monorail’s Early Versions
Fmvh on wikimedia commons
Early monorails promised futuristic solutions for city transport. Their sleek designs and elevated tracks fascinated crowds who saw them as the future of travel. Some prototypes were even built for fairs and exhibitions, drawing huge attention. Yet, many projects failed to become practical and were eventually left behind.
7. The Betamax Tape
Jason Curtis for the Museum of Obsolete Media on wikimedia commons
Betamax offered high-quality video recording that many argued was better than its rival formats. It gave people the chance to record shows and movies at home, which was groundbreaking for entertainment. However, it lost the format war to VHS, which became more affordable and widely adopted. Despite its failure, Betamax played a pivotal role in laying the groundwork for the home entertainment industry we know today.
8. The Victrola
Daderot on wikimedia commons
A stylish upgrade to the phonograph, the Victrola brought music into living rooms with elegance. Its wooden cabinets and hand-crank design made it both a piece of furniture and a source of entertainment. Families would gather around it to enjoy music together, shaping early music culture in the home. Eventually, radios took over, leaving the Victrola as a symbol of a bygone era.
9. The Zeppelins
Thierry Grun on wikimedia commons
Airships once symbolized the future of travel, carrying passengers across countries in comfort and luxury. Their massive size and graceful flight made them seem almost magical compared to trains and ships. For a time, they represented innovation and prestige in transportation. However, disasters like the Hindenburg ended their reign, leaving airplanes to dominate the skies.
10. The Magic Lantern
Reke on wikimedia commons
Before movies, the magic lantern projected images onto walls using light and painted glass slides. It amazed audiences by bringing pictures to life in a way they had never seen before. For centuries, it was a popular form of visual entertainment across Europe and beyond. Eventually, it became the precursor to cinema, paving the way for modern film.
11. The Hand-Crank Washing Machine
Joe Mabel on wikimedia commons
Before electricity, washing machines worked with manual cranks that required physical effort to operate. Even so, they saved households hours of labor compared to washing clothes entirely by hand. These machines marked an important step toward modern household convenience. However, they quickly vanished once electric models became widely available.
12. The Fax Machine
Pittigrilli on wikimedia commons
Faxing once seemed like the height of speed and efficiency in offices. It allowed people to send copies of documents across long distances almost instantly, which felt revolutionary at the time. For decades, no business office was complete without one humming in the corner. But with the rise of email and smartphones, fax machines quickly became obsolete.
13. The Pager
Jorgebarrios on wikimedia commons
Before cell phones, pagers were essential for doctors, businesses, and even teenagers who wanted to stay connected. A simple beep could signal an urgent message, changing the way people communicated on the go. For a while, they were a status symbol and a lifeline in fast-paced environments. However, smartphones eventually replaced them entirely, leaving pagers as a relic of the past.
14. The Compact Disc (CD)
Toshi sanyoshi on wikimedia commons
CDs transformed both music and computing by replacing vinyl records and cassette tapes with digital clarity. They made it possible to carry entire albums, install software, and even store personal data with ease. For years, they were the standard format found in every household, car, and computer desk. However, streaming and cloud storage have left them nearly forgotten, gathering dust in old collections.
15. The Floppy Disk
Swtpc6800 en:User:Swtpc6800 Michael Holley on wikimedia commons
Once the backbone of data storage, floppy disks held our files, games, and programs. They were small, portable, and essential for transferring data between computers in the early days. For a whole generation, nothing felt more high-tech than sliding one into a drive. Now, they live on mostly as the “save” icon on your screen, a digital memory of their past importance.
16. The Rotary Phone
Elizabeth Liebenberg on pexels
With its spinning dial, the rotary phone was once found in nearly every home. Using it required patience, as dialing long numbers took time and effort. For decades, it was the heart of household communication and a symbol of connection. Eventually, it gave way to push-button models and then mobile phones, leaving it as a charming memory of the past.