Nikola Tesla ~ Was born in 1856, nine years before the start of the Civil War. His decades of legal battles with Guglielmo Marconi ended approximately two years into World War Two, nine months after his death in1943. The Supreme Court decided he was the true inventor of radio and the originator of over seven hundred patents.
Edwin Howard Armstrong ~ was born in 1890; his unfortunate suicide in 1954 went basically unnoticed. In the courts he battled Lee Deforest for falsely claiming to have invented the radio tube. RCA ran back and forth within the court system for years. Without his genus the evolution of AM radio, the development of FM radio and the audio portion of TV broadcast, would have been delayed if invented at all.
David Sarnoff ~ Born in Russia in 1891, hustled newspapers on the streets of New York City. His business acumen even at an early age saw him own his own news stand and hire his brother to be the operator. Urban legend and Sarnoff himself laid claim to having manned the wireless during the sinking of the Titanic in 1915.
What do these three men Tesla, Armstrong and Sarnoff, have in common? Tesla provided the basic science, Armstrong furthered the technology until it became feasible and Sarnoff melded it all together to bring commercial radio broadcasting to the general public.
It was quickly ascertained this new medium could not only bring entertainment, sports and current news but opened the door to a huge market for the promotion of almost any product or service. Sponsors rapidly embraced this new technology. Toasters to farm shoes, it made no difference, the cost per household to promote could be measured in fractions of a penny.
Fast forward ~ the end of the twentieth century and the commercial availability of the Internet. The simple function of broadcasting information to the world is almost a matter of fact occurrence. Direct sales or multilevel marketing (MLM), products and services are readily available from multiple vendors at competitive prices. The Internet has an additional feature, it not only allows the prospective buyer to shop for prices, product availability or services, it also permits competitors to compare themselves and their products to other vendors.