Networking history $-$ when did it happen? Match the networking event with the time frame when the event occurred.

Early studies of packet switching by Baran, Davies, Kleinrock.

The Internet Protocol $($IP$)$ is standardized in RFC $791.$

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Congestion control is added to the TCP protocol.

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The WWW starts up $($note: the WWW design started at the end of previous decade$).$

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Software$-$defined networking begins.

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The number of wireless internet$-$connected devices surpasses the number of connected wired devices.

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Internetting: DARPA researchers connect three networks together.

First ARPAnet node is operational.