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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 »

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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 »

www.reference.com History Inventions

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 »

www.reference.com History Inventions
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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 »

www.reference.com History Inventions

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 »

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The first robot was created by the Greek mathematician Archytas of Tarentum. It was a flying wooden dove that traveled up to 200 meters through the air by flapping its wings. More »

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The first envelopes were made out of clay and were developed in ancient Babylonia in around 3500 B.C. Paper envelopes were first used in China over 2,000 years ago, but it was not until the 19th century that British manu... More »

www.reference.com History Inventions