The current literature on the Kurds in Turkey is based on the assumption that since the 19th century the State has attempted to assimilate the Kurds and that this has been the cause of the intermittent 'troubles' in Turkey. Metin Heper argues that this theory does not stand up to scrutiny given the many centuries of amicable relations between the State and the Kurds. He suggests that a theory of acculturation rather than assimilation better captures the real nature of State-Kurd interaction in Turkey, by not leaving any part of that interaction unaccounted for.