When was the telephone invented

1876

Explanation:

It was at this time, 1876–1877, that a new invention called the telephone emerged. It is not easy to determine who the inventor was. Both Alexander Graham Bell and Elisha Gray submitted independent patent applications concerning telephones to the patent office in Washington on February 14, 1876.

answer; slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.