13 things that were invented much earlier than you probably thought

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It may seem like all of today's technologies are new, but they've actually been in the works for decades, even hundreds of years. Here are some of the most important discoveries that were born earlier than we might have thought.



Vaccination (1796)
Edward Jenner created the first vaccine before the beginning of the 19th century. The vaccine was an embryonic stage of the cowpox virus, intended to destroy smallpox that was affecting humans.

A milkmaid, Sarah Nelmes, came to Jenner with inflammations on her hands caused by cowpox. Jenner took fluid from them and then injected it under the skin of an eight-year-old boy, his first test subject.

At first he had a fever, but the illness quickly passed. Later, Jenner injected the boy with the smallpox virus and found that he developed immunity.



Battery (1800)
On March 20, the voltaic battery, developed by Italian inventor Alessandro cayman islands number data Volta, will celebrate its 216th birthday.

Volta initially called his invention an "artificial electric organ." This was due to the popular theory at the time that animal tissue was needed to conduct electricity.

Instead, Volta used folded metal discs and rags soaked in saline solution. They conducted electricity, and thus the battery was born.



Microphone (1876)
Shortly after Alexander Graham Bell introduced his invention, the telephone, a German clerk, Emil Berliner, realized that the device's transmitter was quite weak.

With only a rudimentary knowledge of electricity, Berliner set to work on a so-called free-contact transmitter, which amplified the sound coming from an existing model of Bell's telephone.

Company, was so impressed with Berliner's work that it made him an employee of its laboratory.