“Great American Novelist” has long been a pretty masculinized term, a way of jumping straight to names with the largest cultural visibility at the expense of women and people of color. And even as organizations like the National Book Foundation have made strides over the past few decades, a rather stunning fact has remained true: While eight men have won the prestigious National Book Award for fiction multiple times, including such legends as William Faulkner, John Cheever, and John Updike, no woman has ever done so. Until Wednesday night.