Iraq once had a strong public health care system dating back 1000 years that was free for all and included specialized hospitals and residency training for physicians. The University of Al-Karaouine, founded in 859 CE, is considered the world's oldest degree-granting university. In the 1970s, Iraq had a high quality health care system relative to the region. However, after wars and sanctions in the 1980s and 1990s, health infrastructure and personnel declined dramatically with doctor and health worker shortages and lack of essential medicines. The education system was also historically based on religious and societal values.