I think Concurrent ML (1991) had select before Go. Go itself took it from Newsqueak (1994) and Limbo (1995) I think. The name itself probably comes from the UNI

I think Concurrent ML (1991) had select before Go. Go itself took it from Newsqueak (1994) and Limbo (1995) I think. The name itself probably comes from the UNIX select(2) syscall, which first appeared in 4.2BSD (1983).