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RFC 1 launched the internet's collaborative rulebook

On this day · 7 April 1969
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On April 7, 1969, UCLA student Steve Crocker circulated RFC 1, beginning the open document series that still shapes the internet.

Verified · RFC Editor (RFC 1, original document)

On April 7, 1969, a UCLA graduate student named Steve Crocker circulated a modest memo titled “Host Software.” It carried the label Request for Comments: 1, and it became the first entry in a series that has documented the internet’s design ever since.

The stakes were quietly enormous. Crocker’s team was building ARPANET, the U.S. military research network that would grow into the internet, and someone had to write down how its host computers should talk to one another. Wary of seeming to dictate standards to his peers, Crocker chose the deliberately humble phrase “Request for Comments” to invite revision rather than command obedience.

That tone of open collaboration became the culture of internet engineering itself.

More than fifty years later, thousands of RFCs have followed, defining everything from email to the web. The protocol Crocker described evolved into NCP, the forerunner of today’s TCP/IP.

1
the very first RFC
1,000s
RFCs since
TCP/IP
its eventual descendant

Sources & references

2 references

Well-established. Corroborated by 2 independent sources.

1 RFC Editor (RFC 1, original document) primary-document “Request for Comments: 1 UCLA 7 April 1969 — Steve Crocker, 'Host Software'.” rfc-editor.org ↗
2 IEEE Spectrum webpage “The first batch of RFCs arrived in April 1969 ... 'I wrote RFC 1,' [Crocker said].” spectrum.ieee.org ↗
✓ Last reviewed Jun 7, 2026

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