# What is the most important invention of the 19th century?

> Fifteen things that did not exist in 1800 and were ordinary by 1900. Some rebuilt cities, one just made writing faster.

*By YPB Team · Published September 1, 2026 · https://youpick.best/ranking/what-is-the-most-important-invention-of-the-19th-century*

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## Current results (no votes yet)

1. **The dynamo** — score 1000/1000
   The generator that turned mechanical motion into a usable electricity supply.
2. **The incandescent light bulb** — score 921/1000
   The first practical electric lamp, demonstrated publicly by Edison in December 1879.
3. **The telephone** — score 921/1000
   Patented by Alexander Graham Bell in 1876, it turned distance into a dialling problem.
4. **The electric telegraph** — score 779/1000
   The first near-instant long-distance messaging, commercialised from the 1830s.
5. **Dynamite** — score 703/1000
   Alfred Nobel's 1867 stabilised nitroglycerine, which cut the tunnels and canals of the industrial age.
6. **The sewing machine** — score 643/1000
   Mass-produced clothing began with this, and so did the modern garment industry.
7. **The X-ray** — score 499/1000
   Rontgen's 1895 discovery, which let doctors see inside a living body for the first time.
8. **The steam locomotive** — score 411/1000
   Rail traction that collapsed travel times and redrew the map of trade.
9. **The AC induction motor** — score 411/1000
   Tesla's brushless motor, patented in 1888, which made alternating current useful for industry.
10. **The typewriter** — score 411/1000
   Mechanised writing that standardised documents and opened office work to women.
11. **The phonograph** — score 411/1000
   Edison's 1877 machine, the first device that could record sound and play it back.
12. **Photography** — score 310/1000
   From the 1830s onward, the first technology that recorded a scene without a painter.
13. **The bicycle** — score 310/1000
   Personal mechanical transport that gave ordinary people, and especially women, independent range.
14. **The internal combustion engine** — score 52/1000
   The compact power source that made the car, and later the aeroplane, possible.
15. **The Bessemer process** — score 52/1000
   The 1856 method that made cheap steel, and with it skyscrapers, rails and ships.

Tags: science, historical, inventors