Go is very much a descendent of Plan 9. It’s written by Rob Pike of Bell Lab / Plan 9, is heavily inspired from languages such as Alef https://en.wikipedia.org/

Go is very much a descendent of Plan 9. It’s written by Rob Pike of Bell Lab / Plan 9, is heavily inspired from languages such as Alef https://en.wikipedia.org/wiki/Alef_(programming_language) https://en.wikipedia.org/wiki/Alef_(programming_language) which ran on Plan 9 and, if I recall correctly, Go’s original compiler was basically a modified compiler for one of this Plan 9 systems languages (to enable Pike et al to speed up the release of version 1.0).