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[edit] Wireless prehistory (19th century)
In the late 19th century it was clear to various scientists and experimenters that wireless communication was possible. Various theoretical and experimental innovations led to the development of radio and the communication system we know today. Some early work was done by local effects and experiments of electromagnetic induction. Many understood that there was nothing similar to the "ethereal telegraphy" [1][2] and telegraphy by induction; the phenomena being wholly distinct. Wireless telegraphy was beginning to take hold and the practice of transmitting messages without wires was being developed. Many people worked on developing the devices and improvements.


[edit] Faraday
In 1831, Michael Faraday began a series of experiments in which he discovered electromagnetic induction. The relation was mathematically modelled by Faraday's law, which subsequently became one of the four Maxwell equations. Faraday proposed that electromagnetic forces extended into the empty space around the conductor, but did not complete his work involving that proposal.


James Clerk Maxwell was an experimenter with electromagnetic waves and developed the Maxwell equations.
[edit] William Henry Ward
In April 1872 William Henry Ward received U.S. Patent 126,356 for radio development.


[edit] Maxwell
Between 1861 and 1865, James Clerk Maxwell made experiments with electromagnetic waves. In 1873, as a result of experiments, Maxwell first described the theoretical basis of the propagation of electromagnetic waves in his paper to the Royal Society, "A Dynamical Theory of the Electromagnetic Field."


[edit] Mahlon Loomis
Mahlon Loomis of West Virginia has the oldest and most documented claim of inventing radio. Loomis received U.S. Patent 129,971 for a "wireless telegraph" in July 1872. This patent utilizes atmospheric...