The Timeline of the Telephone

Bell's liquid transmitter

Jan 1, 1876

Shellac Disc

Feb 1, 1879

The box telephone

Sep 12, 1880

Western electric type 22

Sep 10, 1902

AM radio

Sep 10, 1906

1937

Sep 10, 1937

FM Radio

Sep 10, 1937

First mobile phone device

Sep 10, 1946

1948 LPM ''LP''

Sep 17, 1948

1949 RPM Single

Sep 17, 1949

1963 Compact Cassette

Sep 17, 1963

1964 Trimline

Sep 17, 1964

1964 8- Track

Sep 17, 1964

1992 DECT

Sep 17, 1992

1992 Mini Disc

Sep 17, 1992

2001 Satellite Radio

Sep 17, 2001

2002 Radio

Sep 17, 2002

2003 Iphone

Sep 17, 2003

2004 Iphone

Sep 17, 2004

1982 Compact Disc

Sep 17, 2013

2001 IPod

Sep 17, 2013