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The United States forms the Advanced Research Projects Agency (ARPA) with the Department of Defense to establish US leadership in science and technology applied to military fines.

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English inventor Donald Davies pitches his “packet” routing idea and gets the NPL, England's National Physical Laboratory, interested in building a computer network to test the validity of his groundbreaking idea.

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At the University of California at Los Angeles, UCLA, the ILLIAC IV computer, the largest in the world at the time, is connected to the ARPANET so that remotely connected scientists can query databases located on that central computer. .

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Internet begins to expand with a new node per month

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ARPANET already has 15 nodes and 23 hots (servers). Ray Tolimson begins to develop electronic mail.

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The Department of Energy creates its own network on dedicated lines. NASA also plans its own entry into cyberspace and all these networks are interconnected through the TCP protocol, although they maintain their own protocols internally.

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The Bell develops its own UUCP protocol to connect computers to networks through the telephone.

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The first PCs with real potential to communicate via modem to telephone services appear. The modems and the necessary software for the Internet connection are developed. Vint Cerf continues with his vision of the Internet by forming the International Cooperation Board, International Cooperation Committee.

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E-mail is already a reality. The number of servers amounts to 100.

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The first PCs with real potential to communicate via modem to telephone services appear. The modems and the necessary software for the Internet connection are developed.

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At the end of 1985 there were already more than 2,000 computers connected to the Internet.

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The Vice President of the United States presents the Internet2 project to the press

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Facebook is born.

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Beginnings of instant messaging on mobile phones. WhatsApp is born.