Telephone By mallorymunson Mar 7, 1876 Alexander Graham Bell invents the telegraph. This is the day he got the invention patented. Feb 19, 1880 Radiophone is invented jointly by Alexancer Graham Bell And Charles Sumner Tainter. The device allowed for the transmission of sound on a beam of light. Apr 1, 1880 World's first wireless telephone. 213 meters away Jan 1, 1919 The first rotary dial telephones in the Bell System. Apr 7, 1927 World's first videophone call. from Washington, D.C. to New York City, by then-Commerce Secretary Herbert Hoover. Jan 1, 1963 the first publicly available push-button telephone was released