The first trial of long-distance telephony in Great Britain as a commercial proposition was held on 1 November with a call between Cannon Street in London, and Norwich - a distance of 115 miles - using an Edison transmitter on a telegraph wire.Professor David Edward Hughes (1831-1900) invented the microphone.
He had inherited an interest in the training of deaf children from his father, Alexander Melville Bell, who had been a teacher of elocution at Edinburgh.
Graham Bell's vocation led him to investigate the artificial reproduction of vowel sounds, resulting in a study of electricity and magnetism, and ultimately the development of the telephone.1876 On 14 February an application was filed in America for a patent for Bell's apparatus for transmitting vocal sounds.
However, following the formation of the Bell Telephone Company, Western Union realised that their telegraph machines were being replaced by Bell's telephones and promptly formed the American Speaking Telephone Company to compete with Bell.
The new company employed Thomas A Edison, Elisha Gray and Amos F Dolbear, three leading electrical inventors.
The Bell family emigrated to Brantford, Ontario, Canada, in 1870 following the deaths of Graham's two brothers from tuberculosis.
From here Bell moved to Boston in the United States in 1872 to take up an appointment as a teacher of the deaf.
1877 In July, Mr W H Preece (1834-1913), who later became Sir William Preece, FRS and Engineer-in-Chief of the Post Office, brought to this country the first pair of practical telephones seen in Great Britain.
Later in the same year Bell's perfected type of telephone was exhibited at a meeting of the British Association in Plymouth.
The Telephone Company Ltd (Bell's Patents) was formed to market Bell's patent telephones in Great Britain.
The company was registered on 14 June with a capital of 100,000. It had a capacity for 150 lines and opened with 7 or 8 subscribers.
1878 Bell demonstrated the telephone to Queen Victoria on 14 January at Osborne House on the Isle of Wight with calls to London, Cowes and Southampton.