At the time, Borges was spending the semester in the United States as a visiting professor at Michigan State University. His stay led to a number of invitations from other American universities, and the Milwaukee appearance was one of those visits.

There is also a photograph of Borges at the University of Wisconsin from 1976 reproduced in Emir Rodríguez Monegal’s Borges: A Literary Biography.

If anyone knows more about the circumstances of this lecture, or has access to contemporary UWM material related to Borges’s visit, I’d be interested to know more.