A. 1940s
B. 1930s
C. 1920s
D. 1910s
Explanation:
On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.
A. 1940s
B. 1930s
C. 1920s
D. 1910s
Explanation:
On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.