History Of The Internet Timeline By thonynguyen 1969 ARPANET was started 1971 Ray Tomlinson developed the system to send and recieve email 1982 Rules/Protocols for sending and receiving data known as TCP/IP were adopted 1994 Only 3% of American classrooms had the internet 2002 92% of American Classrooms had Internet 2012 more than 2.4 billion people use the internet