I haven’t yet written about Martin Luther King Jr. in this series because I have been saving him. He was without doubt one of the greatest orators of the twentieth century, as well as one of its moral heroes and—effectively—martyrs. To honor him, America marks Martin Luther King Jr. Day tomorrow, the federal holiday coinciding this year with the inauguration of President Trump. It’s strange to think that, were it not for the act of one man on a spring day in Memphis, King could feasibly have just celebrated his 96th birthday.