On election night Tuesday, Hillary Clinton hopes to take the stage at New York City’s Javits Center, beneath a glass ceiling, as America’s first female president-elect. If the Democratic nominee is elected president, it will be a captivating moment, overflowing with emotion befitting an achievement that’s 227 years in the making. But in the meantime, history is being made more quietly, in living rooms and polling places across the country. With early voting under way, millions of…