There has been much debate through the year as to when was the radio invented and who actually created the first radio. There are several men who claimed to have discovered and created a radio that could transmit signals all around the same time, and all in different locations. Nikola Tesla, in the United States, Guglielmo Marconi, in Italy, and JC Bose, in Inda. So when was radio invented, and by whom?
In 1892 Nikola Tesla, a Serbian inventor, created a model for the radio, although it was only a theoretical model, and did not work at the time. In 1896, Guglielmo Marconi, an Italian inventor, created a device that was able to transmit radio signals across the English Channel, and opened the first radio manufacturing company in 1899. Another inventor from India, JC Bose is also said to have created the first radio in 1896, when he successfully transmitted radio waves in front of the British Governor General.
Tesla patented his research model in 1897, however, in 1904, the U.S. Patent Office reversed it's decision on Tesla's patent, and offered Marconi a patent for his radio instead. While all of this was taking place, in 1896 an Indian inventor by the name of JC Bose was said to have transmitted radio signals over a distance of 3 miles with his radio. Unlike Tesla and Marconi, Bose did not apply for a patent for his invention until 1901, and was awarded a patent in 1904. It is said that Marconi stole some of his ideas from Bose, but this was never confirmed.
In 1943, the U.S. Supreme Court reversed Marconi's patent for his radio and reinstated Tesla's patent, giving Tesla credit for being the first to invent the radio in 1892, although Tesla never actually created a working radio. There however is speculation that this was done because Marconi was suing the U.S. Government for using his patents in World War I without his consent, in order to avoid this lawsuit, the U.S. Government simply overturned Marconi's patents and reinstated Tesla's. So for all intents and purposes, the radio was invented in 1892 by Nikola Tesla, though the true story of when was radio was invented and by whom will probably remain a mystery.
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