This invention revolutionized communication and made it possible for people to send and receive signals from space. The satellite is a device that orbits the Earth and is used to send and receive radio, television, and other types of communication signals. It has enabled us to explore space, communicate with other countries
From Wikipedia
The invention of the telephone was the culmination of work done by many different people, and led to an array of lawsuits relating to the conflicting patent claims made by several individuals and numerous companies. Notable people included in this process were Antonio Meucci, Philipp Reis, Elisha Gray and Alexander Graham Bell.