That's not really true. Moore's 1965 paper was the first reference to periodic doubling in ICs but nobody called it "Moore's Law" then. Moore put out a few other papers then at the conference where Dennard gave his famous presentation on scaling laws someone coined the phrase "Moore's Law" in an interview and in that interview and in usage since then it was always ambiguous exactly which doubling it referred to because until the breakdown of Dennard scaling all good things doubled together.
