The internet · a dated record
Nobody invented
the internet.
It was assembled, over sixty years, out of parts built by people who mostly were not trying to build it. A memo about surviving a nuclear strike. A theory about chopping messages into blocks. A protocol written to join two networks that already existed. A naming system invented because a single hand-maintained file had stopped scaling. A hypertext program written at a physics lab to keep track of who worked on what.
This page is the order they happened in, and what each one actually replaced. Every date here is the date the thing WORKED — not the date it was proposed, funded or announced, because those are different years and the difference is usually where the story is.
The five ideas
Everything else is engineering.
Strip out the companies and the money and the lawsuits and five ideas are left. Each one had to exist before the next could.
The record
What happened, and when it worked.
The people
Who built which piece.
Named for one thing each, because that is how the work was actually done — and because “father of the internet” has been printed about at least eight of them. Every link goes to a page about that person, not to a search.
Method
What is checked, and what is argued about.
The dates are the dates things worked. ARPANET is dated to the first message between two machines, not to the 1966 plan or the 1968 contract. TCP/IP is dated to the flag day the network actually switched, not to the 1974 paper that described it. The web is dated to the first page served off a machine other than the one it was written on.
Three things on this page are genuinely disputed and are marked where they appear. Packet switching was invented twice, independently, on two continents — Baran at RAND and Davies at the NPL — and the word is Davies’. The “first email” depends on what you count, because programs had been leaving messages in files on shared machines for years before Tomlinson sent one between two. And whether the ARPANET was built to survive a nuclear war is a claim its own engineers spent decades denying and RAND’s papers spent a decade proposing — both are true of different documents.
The illustrations are drawn here. There is no photograph on this page, because the estate does not ship pictures it did not take and cannot license, and a stock image of “connectivity” would be decoration pretending to be evidence. Each plate is an SVG that draws the mechanism it names — the packet, the handshake, the hierarchy — and is worth exactly what a diagram is worth.