This document provides a brief history of immunobiology, listing some of the key figures who contributed to early discoveries, including Edward Jenner, Louis Pasteur, Robert Koch, Paul Ehrlich, and Elie Metchnikoff. It also lists some references for anatomy of the immune system from Blackwell in 2001 and Rodney Langman's 1989 book on the immune system which applied evolutionary principles to understanding this complex biological defense system.