History of the Internet

  • United States create the ARPA

    USSR's launch of Sputnik spurred the United States to create the Advanced Research Projects Agency (ARPA or DARPA) in February 1958 to regain a technological lead, and interconnect their computers at the Pentagon, Cheyenne Mountain, and SAC HQ source
  • Early ARPANET runs on NCP

    Early ARPANET runs on NCP
    early ARPANET ran on the Network Control Program (NCP), a standard designed and first implemented in December 1970 by a team called the Network Working Group (NWG) led by Steve Crocker source
  • Birth of TCP/IP

    Vinton Cerf and Robert Kahn developed the first description of the now widely used TCP protocols during 1973 and published a paper on the subject in May 1974. source
  • Period: to

    X.25-based networks grow

    Following the demonstration that packet switching worked on the ARPANET, the British Post Office, Telenet, DATAPAC and TRANSPAC collaborated to create the first international packet-switched network service. In the UK, this was referred to as the International Packet Switched Service (IPSS), in 1978. The collection of X.25-based networks grew from Europe and the US to cover Canada, Hong Kong and Australia by 1981. source
  • ARPANET switches to TCP/IP

    The first TCP/IP-based wide-area network was operational by January 1, 1983 when all hosts on the ARPANET were switched over from the older NCP protocols. source
  • NSFNET - 56 kilobit/second network backbone created

    1985, the United States' National Science Foundation (NSF) commissioned the construction of the NSFNET, a university 56 kilobit/second network backbone. source
  • NSFNET upgrade to 1.5megabit/second

    NSF sponsored the conversion to a higher-speed 1.5 megabit/second network. source
  • Web was invented

    Web was invented
    The Web was invented by British scientist Tim Berners-Lee in 1989. source
  • World Wide Web project publicized

    On 6 August 1991, CERN, a pan European organization for particle research, publicized the new World Wide Web project. source
  • Estimated internet user population estimated to be 1.67 billion

    Estimated internet user population estimated to be 1.67 billion
    The estimated population of Internet users is 1.67 billion as of June 30, 2009. source