A Timeline in the History of Radio

We bring you back to the history of radio communication. Radio communication plays vital role in world war during the time. It changed human history multiple times. Now we take a look on the marking point. 

A Timeline in the History of Radio
1799	Volta Italian physicist known for the invention of the battery
1838	Morse demonstrates telegraphy
1861	Transcontinental telegraph by wire
1876	Bell invents telephone
1883	Edison invents the Edison effect Note: Edison effect is a emission of electrons from a hot cathode into a vacuum
1886	Hertz produces and detects electric waves
1897	J.J.Thompson discovers the electron
1899	Wireless telegraphy
1904	Radio alternator designed
1912	RF generator invented
1914	American Radio Relay League founded
1918	Superheterodyne receiver invented
1924	Directive shortwave antenna invented
1925	Human features transmitted by television
1925	Pioneers work on radar
1928	One-way police radio communication
1931	Radioastronomy founded by detection of radio waves from the center of our Milky Way galaxy.
1933	Two-way police radio communication
1933	FM invented
1937	Radiotelescope used to find the first discrete radio sources beyond Earth and map the natural radio signals across the Milky Way
1942	Voice of America shortwave broadcasts in English, French, Italian, German
1944	BBC broadcasts coded messages to Fench resistance before D-Day
1945	Astronomers develop radioastronomy
1945	Japan's Emperor announces his country's surrender in his first radio broadcast
1946	First and brightest radio source beyond our galaxy, Cygnus A, discovered
1946	Transistor invented will make small radios commercially feasible
1950-1969	Electronic technology applied to spaceflight
1951	Electromagnetic radiation discovered coming from interstellar hydrogen at a radio wavelength of 21 cm
1953	First amateur radio moonbounced
1957	Beeping radio signal from Sputnik 1, Earth's first artificial satellite
1959	Radio signal from first human-made object to leave Earth, USSR probe Luna 1
1959	Radio signal from first human-made object to reach another world, USSR probe Lunik 2 on the Moon
1959	Radio-photos from first spacecraft to go behind the Moon, USSR probe Lunik 3
1959	The integrated circuit (IC) is introduced
1959	First communication satellite, Echo, launched by US
1960	First radio-photos of Earth weather from orbit
1961	First human communication from space
1961	First amateur radio satellite
1962	Transatlantic reception of television signal via satellite
1962	Radio signal from first human-made object to reach another planet, Mariner 2 at Venus
1963	First female human communication from space
1963	Arecibo radiotelescope
1965	Radio signal from human-made object at Mars, Mariner 4
1969	Human communication from the Moon
1969	Internet
1971	Human communication from a space station
1973	Radio signal from human-made object at Jupiter, Pioneer 10
1981	Human communication from a space shuttle
1981	Sony introduces consumer synthesized radio receiver
1983	Radio signal from spacecraft leaving the Solar System, Pioneer 10
1983	Direct broadcast TV
1986	Cellular phones become international business
1986	Radio signal from human-made object at Uranus, Voyager 2
1989	Radio signal from human-made object at Neptune, Voyager 2
1991	World Wide Web
1992	XM Satellite Radio
1994	Internet radio broadcasting Internet television broadcasting
1995	Digital signal processing receiver introduced
1999	Sirius Satellite Radio
2001	Software Radio chips available
2003	Digital Radio Mondiale (DRM) – digital AM radio with FM-quality sound
2004	Podcasting begins