In 1905 physics genius Nikola Tesla submitted his US patent 787,412 which describes «The Art of Transmitting Electrical Energy Through the Natural Mediums», and includes a design for a series of worldwide generators.
It is beyond doubt this patent led to the construction of the Omega network of radio transmitters erected around the world between 1963 and 1982, officially for the purpose of global navigation, though navigation is its least important function.
