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in the 1890s on behalf of oceangoing ships -
In 1895, in his first successful demonstration, Marconi sent a wireless Morse Code message to a source more than a kilometer away. -
Following Hertz's untimely death in 1894 -
1906 Tesla developed an experimental wireless-transmission station at Shoreham, NY, called Wharncliffe Tower -
in 1912 after a series of financial scandals. Although he held 300 patents -
By 1914, Fessenden, a Canadian who was once employed in Thomas Edison’s labs, had worked with General Electric to build alternators -
In 1919, Marconi’s resources were sold to General Electric and with that Radio Corporation of America -
In the boom of the 1920s, people rushed to buy radios, and business and social structures adapted to the new medium.