On this day in 1935, radio's "premiere inventor" Edwin Armstrong presented his paper "A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation" to the New York section of the Institute of Radio Engineers. His theories led to the now ubiquitous FM radio, replacing AM as the choice for audio fidelity. Sadly, like many inventors of his day, his patents were copied and stolen by major inventing houses which led to lawsuits and endless litigation. Which is probably why Mr. Armstrong committed suicide in 1954, by jumping to his death from the 13th floor of his New York City apartment building. Armstrong's widow, Marion, would eventually win in court over RCA for the fight over FM radio invention and in 1980 he was inducted into the National Inventors Hall of Fame. Below is the final broadcast of Edwin Armstrong's FM station from Alpine, New Jersey, a month after his death:
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