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It is not known who first invented scissors. Scissors are estimated to have been invented about 1500 B.C. in ancient Egypt. The first scissors were the spring scissor type and were made of a single piece of metal with bl... More »

Although scissors are popularly thought to have been one of Leonardo da Vinci's inventions, earlier examples of the device have been dated to between 3000 and 4000 years ago. While a single original inventor is not known... More »

The inventor of the lever is unknown, as it has most likely been in use since prehistoric times. Greek mathematician Archimedes was the first to describe levers in approximately 260 B.C. More »

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Although scissors are popularly thought to have been one of Leonardo da Vinci's inventions, earlier examples of the device have been dated to between 3000 and 4000 years ago. While a single original inventor is not known... More »

According to About, the first pair of eyeglasses was invented in Italy around 1284 by Salvino D'Armate. While Salvino D'Armate is credited with having invented the first wearable spectacles, a handheld vision aid was inv... More »

Historians do not know who invented the first wheel. The name of the person or persons who came up with this extremely important development is lost to history. More »

Edwin and Robert Stevens developed the first commercial railway in the United States. However, railway transportation predates the development of the steam engine, which was invented in 1698. More »