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First Contact
Two computers at MIT Lincoln Lab communicate with one another using packet-switching technology. -
Planning
From the time of the 1967 PI Meeting, various computer
scientists who were ARPA contractors were busy thinking about
various aspects which would be relevant to the planning and
development of the ARPANET. -
Framework
Beranek and Newman, Inc. (BBN) unveils the final version of the Interface Message Processor (IMP) specifications. BBN wins ARPANET contract. -
Crash
On Oct. 29, UCLA’s Network Measurement Center, Stanford Research Institute (SRI), University of California-Santa Barbara and University of Utah install nodes. The first message is "LO," which was an attempt by student Charles Kline to "LOGIN" to the SRI computer from the university. However, the message was unable to be completed because the SRI system crashed. -
Connectivity
Global networking becomes a reality as the University College of London (England) and Royal Radar Establishment (Norway) connect to ARPANET. The term Internet is born. -
Telenet
The first Internet Service Provider (ISP) is born with the introduction of a commercial version of ARPANET, known as Telenet. -
Full Startup
ARPANET was declared "operational" and the Defense Communications Agency took control of it. -
TCP/IP
Transmission Control Protocol (TCP) and Internet Protocol (IP), as the protocol suite, commonly known as TCP/IP, emerge as the protocol for ARPANET. This results in the fledgling definition of the Internet as connected TCP/IP internets. TCP/IP remains the standard protocol for the Internet. -
Military Use
ARPANET was split with US military sites on their own Military Network (MILNET) for unclassified defense department communications. The combination was called the Defense Data Network. -
NSFNET
The National Science Foundation’s NSFNET goes online to connected supercomputer centers at 56,000 bits per second — the speed of a typical dial-up computer modem. Over time the network speeds up and regional research and education networks, supported in part by NSF, are connected to the NSFNET backbone — effectively expanding the Internet throughout the United States. The NSFNET was essentially a network of networks that connected academic users along with the ARPANET. -
End of ARPANET
ARPANET was formally decommissioned on February 28, 1990. Well-known computer scientist and a “father of the Internet” Vinton Cerf wrote "Requiem of the ARPANET" in honor of the system.