The start of the internet was in the 1950s. First, only scientists and researchers used it to communicate during the cold war. Then In 1973, Robert Kahn and Vinton Cerf proposed a way to interconnect the many networks, which included satellite networks that differed from the telephone lines that the ARPANET used. Thus, TCP/IP was created and the Internet was born. People no longer had to communicate through a single network after this was created.