Who discovery is dawn of the telephone? in which year?

answer please.

# The Bell System, a name and trademark formerly used by AT&T.
# Bell Canada
# Bell Telephone Manufacturing Company, a former company in Antwerp (Belgium), now part of Alcatel.
# The original Bell Telephone Company was founded in 1878 by Alexander Graham Bell's father-in-law Gardiner Greene Hubbard, who also helped organized a sister company鈥攖he New England Telephone and Telegraph Company. The two companies merged in 1879 to form the National Bell Telephone Company, which in 1880 merged with others to form the American Bell Telephone Company, which in turn became the American Telephone & Telegraph Company (AT&T), SBC, and BellSouth, which would later merge to become

Alexander Graham Bell, a Scots/Canadian/American invented a practical telephone in about 1878. Another man called Elisha Gray also had one in the works. Bell and Gray applied at the US Patent Office on the same day, but Bell's application was for a full patent, while Gray only asked for a caveat, which was a request to be warned if an application for a similar thing came in. Both Bell and Gray knew of each other. Some years earlier an Italian called Meuicci had also invented something very like a telephone but I do not know details. For some time metal xylophones with coils under the bars had been used to demonstrate transmission of sound by electricity.

The telephone was an idea whose time had come. A man in Ballarat, Australia called Henry Sutton read of Bell's telephone in "Scientific American" a few months after and said "Why didn't I think of that" and immediately produced about 12 working versions of the telephone based on different principles.

These things are always more complicated than you might think.