Protagoras, a postmodern?

Protagoras thus is the first “anti-realist” in Western philosophy, rejecting the claim that truth is something objective that humans discover for the claim that truth is something humans make for their own purposes. Remarkably enough, then, a view that is often associated with “postmodernism” in recent Western thought is already anticipated in one of the earliest Greek philosophers.—Evans, A History of Western Philosophy, 38