So, for instance, a statement like “One hundred and fifty years after Appomattox, our house remains deeply divided” assumes that the reader knows that Appomattox is both a place and an event; that the event signified the end of a war; that the war was the Civil War and had begun during the presidency of a man, Abraham Lincoln, who earlier had famously declared that “a house divided against itself cannot stand”; that the divisions then were in large part about slavery; and that the divisions today are over the political, social, and economic legacies of slavery and how or whether we are to respond to those legacies.