Directed by the Cultural Revolutionary Headquarters, the revolution initially closed universities for three years (1980–1983) and after reopening banned many books and purged thousands of students and lecturers from the schools.[4] The cultural revolution involved a certain amount of violence in taking over the university campuses since higher education in Iran at the time was dominated by leftists forces opposed to Ayatollah Khomeini's vision of theocracy, and they (unsuccessfully) resisted Khomeiniist control at many universities.