Concerning the origin of the name, Jim Propp asked if there were any sources prior to the 1990's. In Harold Edwards' book FERMAT'S LAST THEOREM: A GENETIC INTRODUCTION TO ALGEBRAIC NUMBER THEORY (Springer, 1977) he says (page 2)
"The origin of the name 'Fermat's Last theorem' is obscure.... Very possibly the name stems from the fact that of the many unproved theorems that Fermat stated, this is the last one that remains unproved."
Herb Kasube Department of Mathematics Bradley University Peoria, IL 61625 email@example.com