1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s
1876
1878
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1877

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Bell's combined receiver and transmitter
Bell's combined receiver and transmitter
Bell Telephone
Edison Motograph Telephone
Edison Motograph Telephone
Bell's box phone goes into service
Bell's box phone goes into service
PDF: Aug 1877 Hubbard report on Bell telephone licensing (transcribed)
Aug 1877 Hubbard report on Bell telephone licensing (transcribed)
Ad: Swedish telephone
Swedish telephone
Brown profs swap bar magnet for Bell's horseshoe magnet, enabling butterstamp telephones
William Francis Channing
Ad: Bell telephone roadshow
Bell telephone roadshow
Thomas Edison patents his carbon button transmitter
Thomas Edison
Ad: George Coy / Connecticut District Tel.
George Coy / Connecticut District Tel.
Berliner files caveat for improved telephone transmitter
Berliner files caveat for improved telephone transmitter
Bell marries Mabel Gardiner Hubbard
Alexander Graham Bell Mabel Gardiner Hubbard
Bell Telephone founded
Bell Telephone founded
Bell patents transfers 75% of his Canadian patent rights to his father
Alexander Graham Bell Alexander Melville Bell
Western Union creates the American Speaking Telephone Co.
Western Union creates the American Speaking Telephone Co.
Doolittle invents and produces first hard drawn copper wire
Doolittle invents and produces first hard drawn copper wire
Holmes Burglar Alarm of Boston installs first telephone exchange
Holmes Burglar Alarm of Boston installs first telephone exchange
Berliner joins Bell Telephone
Emile Berliner
Bell and Watson stage public telephone exhibitions
Bell and Watson stage public telephone exhibitions
Doolittle files patent for 'direct-connecting' switchboard
Doolittle files patent for 'direct-connecting' switchboard
Puskás designs first telephone exchange
Tivadar Puskás
Watson invents a ringer that 'thumps'
Watson invents a ringer that 'thumps'