By tribal custom, he was not to reveal his name to an enemy. Rather, one would be introduced by a friend, and then the name could be offered. Since he was the last of his people, he had no friends, although he made some later at the University of California. Tradition demanded that he never speak his name. Researchers at the University of California, Berkeley gave him the name Ishi, the Yana word for "man". He accepted this and adopted the term "Mr. Ishi" when he learned enough English. Ishi worked as a research assistant at the Museum of Anthropology. He taught Saxton Pope, a professor at the medical school and his physician, how to make arrows and bows, and to hunt with them. Pope is considered the "father" of modern bow hunting, as he published extensively on techniques.