January 15, 2001

Wikipedia launched

Jimmy Wales and Larry Sanger launched WikipediaA free, collaboratively edited encyclopedia on the web — one of the largest reference works ever built. on January 15, 2001 — a collaboratively edited encyclopedia that became developers' default reference.

What it was for

WikipediaA free, collaboratively edited encyclopedia on the web — one of the largest reference works ever built. is the overview source cited across Techline events — and the daily starting point for programmers researching APIs, history, and standards. Its wikiA website anyone can edit — quick collaborative publishing; Wikipedia is the most famous example. model influenced internal company wikis and Ward Cunningham's original wikiA website anyone can edit — quick collaborative publishing; Wikipedia is the most famous example. concept.

People

  • Jimmy Walesco founder
  • Larry Sangerco founder

Why it's here

WikipediaA free, collaboratively edited encyclopedia on the web — one of the largest reference works ever built. became the universal free reference for technical and historical facts.

Why it mattered

It proved large-scale collaborative knowledge curation could work.

What it solved

Authoritative encyclopedias were expensive, slow to update, and incomplete on tech topics.