I was reading Arthur C. Clarke's 2001: A Space Odyssey and was surprised to come across this passage:
Call it the Star Gate.
For three million years, it had circled Saturn, wating for a moment of destiny that might never come. In its making, a moon had been shattered, and the debris of its creation orbited still.
Now the long wait was ending. On yet another world, intelligence had been born and was escaping from its planetary cradle. An ancient experiment was about to reach its climax.
I say surprised because I'd thought that term originated with the 1994 film.
Was Clarke the first to use that term?