raitos

first ratio invented

1893

first radio made in 1893 by nikolai tesla

first brodcasting radio to the public

1910

first brodcasting radio to the public used in football and socer

first ratio used in war

1914

in world war one radios were us

first portable radio

1941

first portable radio selled to the public

the loudest radio invented with speakers

1943

it was named voise of thunder

radio in 1960

1960

radio in 1960 look like this

radio in 1970

1970

radio in 1970s had 4288 stations