Freedom Rider. Labor leader. Whistleblower. Tax reformer. Activists — in their many forms and with their varied causes — have long challenged and reshaped our social and political consciousness. And their attempts to safeguard our democracy have been critical to the continued success of the American experiment. From sit-ins to marches to, more recently, offering a rallying cry on Twitter, the following activists have moved us to confront often uncomfortable, sobering realities in our society for more than a half-century. Although the circumstances giving rise to each activist’s campaign are different, all are rooted in a common sense of moral imperative and personal urgency — a feeling that, as John Lewis says, you “cannot be at home with yourself” unless you act…

Read more in the Washington Post.