Stallman invented the concept of copyleft, “Change it and redistribute it but don’t strip off this freedom,” and wrote (with lawyers) the GNU General Public License, which implements copyleft. In October 1985 he established the Free Software Foundation, of which he is president as a full-time volunteer. Stallman began working on GNU on January 5, 1984, resigning from MIT employment in order to do so. In 1983 Stallman launched the Free Software Movement by announcing the project to develop the GNU operating system, planned to consist entirely of free software. He worked at the MIT Artificial Intelligence Lab from 1971 to 1984, developing system software including the first extensible text editor Emacs (1976), plus the AI technique of dependency-directed backtracking, also nown as truth maintenance (1975). Richard Matthew Stallman leads the Free Software Movement, which shows how the usual non-free software subjects users to the unjust power of its developers, plus their spying and manipulation, and campaigns to replace it with free (freedom-respecting) software.īorn in 1953, Stallman graduated Harvard in 1974 in physics.
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