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USSR launches Sputnik into space and, with it, global communications.
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Dr. Howard Frank co-writes the proposal that wins the contract to design the network structure for the ARPAnet.
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The physical Interface Message Processor (IMP) is constructed, linking four nodes: University of California at Los Angeles, SRI in Stanford, University of California of Santa Barbara, and University of Utah.
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Fifteen nodes (23 hosts) comprise the IMP network.
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Ray Tomlinson invents the Email program to send messages across a distributed network.
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Created by Paul Buchheit.
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Created by Tom Anderson and Chris Dewolfe.
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Facebook, a social networking service which began at Harvard, expands to other universities.
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First organized video streaming and video sharing platform.
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Live streaming and micro blogging platform.
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New platform for chatting by posting pictures.
