Critical race theory
Bell wrote his own material for the classes he taught.  In 1970, he turned them into a book called Race, racism, and American law. He became Harvard Law School's first Black tenured professor in 1971. In 1980, Bell resigned from the university because he thought it was doing racist things, and he became the dean at University of Oregon School of Law. Later, he went back to Harvard as a visiting professor. While he was away from Harvard, his supporters organized protests against Harvard's lack of racial diversity in the classes, student body, and teachers. In 1981, one student protest started a new class based on Bell's course and textbook. In that class, students brought in visiting professors, such as Charles Lawrence, Linda Greene, Neil Gotanda, and Richard Delgado, to teach Race, racism, and American law.