The history of the inventors is exciting, we know very little of those geniuses and their prodigious minds, they changed the World and wrote the most brilliant pages of History. They knew that the bulb was not invented by Edison, and that the radio was not invented by Marconi, and the telephone, could you tell me who invented the telephone, most of us would say that it was Graham Bell, and the steam engine, we would surely say it was Watt, because none of them were the real inventors, with the Universal Encyclopedia Of Inventors we will discover the true geniuses that were behind all these inventions and many others that were hidden throughout the ages.