Verified65% confidenceFactExact time
GPL v1, released by Stallman in 1989, was the first systematized open-source license in history.
3
Sources
65%
Confidence
Long-term
Relevance
7/5/2026
First Seen
Sources
Related Claims
Unverified1983年Richard Stallman发起GNU项目，并创立GPL许可证用版权法保障软件自由72% similarVerifiedRichard Stallman launched the GNU project in the 1980s and regarded documentation freedom as equally important as code freedom.53% similarUnverifiedThe AIDS Trojan distributed via floppy disk by Dr. Joseph Popp in 1989 is considered the first ransomware in history.50% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/112246API
curl https://kongchang.com/api/v1/knowledge/claims/112246MCP
get_claim(id=112246)