Q. What and where was the UMUC conference held in 1997?

The conference was held in Rio de Janeiro, Brazil. Here is the full title of the conference:

22nd International Conference on Improving University Teaching and Learning Faculdade da Cidade and University of Maryland University College Rio de Janeiro, Brazil July 21-24, 1997

The proof is on the 2nd page of this document: https://files.eric.ed.gov/fulltext/ED411469.pdf