History of radio a system for transmitting intelligence and wireless power using the earth as the medium. Others, such as Amos Dolbear, Sir Oliver Lodge, Reginald Fessenden, and Alexander Popov were involved in the development of components and theory involved with the transmission and reception of airborne electromagnetic waves for their own theoretical work or as a potential means of communication. Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission). Marconi demonstrated the application of radio in military and marine communications and started a company
First long-distance telephone line First long-distance telephone line The world's first long-distance telephone line, established in 1877, connected French Corral with Bowman Lake (previously known as French Lake) at the headwaters of the Yuba River. It was strung across trees and poles for a distance of in Nevada County, California, passing through Birchville, Sweetland, North San Juan, Cherokee, North Columbia, Lake City, North Bloomfield, Moores Flat, Graniteville, and Milton. The line was operated by the Ridge Telephone Company for the service of Milton Mining and Water Company, as well as other water companies. The line was an improvement over the system used in nearby