for far longer: Blacks were enslaved in this country for 244 years, from 1619 to 1863. As of 2010, they have been free for 147 years. - Isabel Wilkerson

Over the course of six decades, some six million black southerners left the land of their forefathers and fanned out across the country for an uncertain existence in nearly every other corner of America. The Great Migration would become a turning point in history. It would transform urban America and recast the social and political order of every city it touched. It would force the South to search its soul and finally to lay aside a feudal caste system. It grew out of the unmet promises made after the Civil War and, through the sheer weight of it, helped push the country toward the civil rights revolutions of the 1960s.

That summer and into the fall and in the ensuing years to come, amid talk of Muslim bans, nasty women, border walls, and shithole nations, it was common to hear in certain circles the disbelieving cries, “This is not America,” or “I don’t recognize my country,” or “This is not who we are.” Except that this was and is our country and this was and is who we are, whether we have known or recognized it or not.

The price of privilege is the moral duty to act when one sees another person treated unfairly. And the least that a person in the dominant caste can do is not make the pain any worse.