Jeffrey Clark has been working at UCLA for a number of years as a professor of history, and has been a life-long researcher on his own time. His deepest interests are in human behavior and human re...vizualizați mai multeJeffrey Clark has been working at UCLA for a number of years as a professor of history, and has been a life-long researcher on his own time. His deepest interests are in human behavior and human relations that define our world.vizualizați mai puține