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  An MIT and ARPA scientist, J.C.R. Licklider, proposed connecting computers to keep a communications network active in the US in the event of a nuclear attack.
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  Another MIT scientist, Lawrence G. Roberts, developed a way of sending information from one computer to another that he called “packet switching." This network was called ARPANET.
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  ARPANET delivered its first message, "LO," from one computer (at Stanford) to another (at UCLA). Charles Kline, a student, failed to send the complete attempted message, "LOGIN," because the network system crashed.
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  E-mail (first called network mail) was introduced by Ray Tomlinson of BBN.
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  The term "Internet" was coined as an abbreviation of "internetworking."
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  Two ARPA scientists, Vincent Cerf and Bob Kahn, create "Transmission Control Protocol (TCP)," a system that converts messages into streams of packets at the source then reassembles them back into messages at the destination. Cerf and Kahn also created "Internet Protocol (IP)," a system that ensures packets are routed across multiple networks with multiple standards. Together they were known as TCP/IP.
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  Queen Elizabeth II sends her first email.
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  ARPANET's military sector separated and became MILnet, assigning a subset for public research.
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  The National Science Foundation created a network (NSFNET), and then so did other government agencies like NASA, the National Institutes of Health, and the Department of Energy.
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  The Domain Name System (DNS) created six different domain names to denote different institutions' websites (edu, mil, org, net, com, gov).
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  The internationalization of the Internet started when Tim Berners-Lee, a scientist from the European Organization for Nuclear Research (CERN) opened its first external IP connections.
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  Tim Berners-Lee introduced the World Wide Web: an Internet that was not simply a way to send files from one place to another but was itself a “web” of information that anyone on the Internet could retrieve.
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  Students and researchers from the University of Illinois - Urbana-Champaign created a browser, Mosaic, which allowed web-users to see words and pictures on the same page for the first time and to navigate using scrollbars and clickable links.
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  Congress decided the Web can be used for commercial purposes, thus leading companies to set up websites of their own, and e-commerce entrepreneurs to use the Internet to sell goods directly to customers.
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  Bill Gates's Microsoft creates a Web browser for Windows 95.
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  Jerry Yang and David Filo created Yahoo!
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  NSFNET is eventually decommissioned as the Internet develops into a commercial enterprise.
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  Larry Page and Sergey Brin launched the Google search engine.
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  Mark Zuckerberg launched Facebook, and the social networking era began.
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  Jawed Karim, Steve Chen and Chad Hurley launched YouTube, and streaming videos began.
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  Jack Dorsey and Noah Glass launched Twitter.
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  Kevin Systrom launched Instagram.
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  Facebook and Twitter drive a successful online (and real life) revolution in six Middle Eastern countries (Tunisia, Egypt, Libya, Syria, Yemen and Bahrain).
