-
invented by thomas edison in 1877
-
edison establishes the edison speaking phonograph company
-
first radio broadcast
-
most high tech of the phonograph product
-
tesla did not build a working radio marconi did but tesla took credit
-
invented in 1943 by gugliemo marconi
-
mpeg established
-
germany builds and patends first mp3 under that title
-
algorithm integrated was founded
