The Microbiologists Social enhances student comprehension about specific topics and concepts through character portrayals that place major microbiological discoveries within a historical context. Students randomly select the name of a microbiologist and portray that individual "in character" during an assigned period. Students also create and distribute a one-page handout to their peers. Student familiarity with scientists and their respective professional contributions is assessed through the character portrayal, student-generated handouts, exam responses, and preactivity and postactivity survey responses. This activity encourages independent research, develops critical thinking skills, fosters classroom discussions, reinforces public speaking skills, requires peer instruction, and promotes collegiality.