Friday earned a bachelor's degree in Japanese at the University of Kansas in 1979, followed by a master's degree in East Asian languages and culture from the same institution in 1983.
He then attended Stanford University to pursue graduate study in history, earning a master of arts degree in 1986, followed by a doctorate in 1989.
Friday began his teaching career as an assistant professor at the University of San Diego.
Friday specialized in the study of samurai history and culture, including Japanese martial arts.
Friday also holds menkyo kaiden license in Kashima Shinryū.