The Armenian National Academy of Sciences, founded in 1943 and headquartered in Yerevan, has departments of physical, mathematical, and technological sciences; and natural sciences; and 32 research institutes in fields such as agriculture; biological, mathematical, physical, and earth sciences; and technology. Yerevan State University (founded in 1919) has faculties of mechanics, mathematics, physics, radiophysics, chemistry, biology, geology, geography, and mathematical cybernetics and automatic analysis. Also in Yerevan are the State Engineering University of Armenia (founded in 1930), the Yerevan State Medical University (founded in 1922), the Yerevan Zootechnical and Veterinary Institute (founded in 1929), and the Armenian Scientific and Technical Library. In 1987–97, science and engineering students accounted for 29% of college and university enrollments. In the same period, there were 1,485 scientists and 177 technicians per one million people engaged in research and development.