The Gods and Goddesses of Ancient Greece and Rome had returned to Earth—with all their awesome powers intact, and Earth was transformed almost overnight. War on any scale was outlawed, along with boom-and-bust economic cycles, and prudery—no change was more startling than the face of New York, where, for instance, the Empire State Building became the Tower of Zeus!
In this totally altered world, William Forrester was an acolyte of Athena, Goddess of Wisdom, and therefore a teacher, in this case of a totally altered history—and Maya Wilson, girl student, evidently had a totally altered way of grading in mind—but what else would a worshipper of Venus, Goddess of Love, have in mind?