POV: It’s 2009 and your first grade class is having a Halloween party. Your teacher is playing the “Monster Mash” and everyone is dressed up in their costumes, drinking apple cider and eating doughnuts. There are no worries in the back of your mind about work you have to do, only excitement about going trick-or-treating later.

Anna Malaika Tubbs' spoke about her debut book "The Three Mothers: How the Mothers of Martin Luther King, Jr., Malcolm X, and James Baldwin Shaped a Nation" at a Boston Public Library conversation Tuesday. Her book highlights Alberta King, Louise Little and Berdis Baldwin, forgotten changemakers in U.S. history.