What time period did Alexander Graham bell discover the telephone?
The principles on which the telephone is based were discovered many years before the work of Alexander Graham Bell. Bell patented a telephone apparatus in 1876, having worked on its development since 1865. The US government started a court case to cancel Bell’s patent. The suit claimed that the patent was fraudulent and based on the work of Antonio Meucci (1808-1889), an Italian immigrant educated in mechanical engineering and design, who had designed a telephone in the 1850’s and gave a public demonstration of it in 1860 on New York’s Staten Island, and Johann Philipp Reis, a German inventor who developed a similar device.
