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.

Scholars from across the country and abroad gathered in Boston University’s Photonics Center for an all-day conference Saturday titled “Convergent Minds: The Evolution of Cognitive Complexity,”...