Computing · 1983

GNU Project

A free Unix-like system, and the idea of free software.

Richard Stallman launched GNU to create an operating system anyone could use, study and share. Its GPL license and tools such as GCC became core to Linux and open-source development.

See it in the living tree Wikipedia

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 2

C 1972
Unix 1969

What it led to 2

Linux 1991
Open source 1998