The gwageo or kwago were the national civil service examinations under the Goryeo and Joseon dynasties of Korea. Typically quite demanding, these tests measured candidates' ability of writing composition and knowledge of the Chinese classics. The form of writing varied from literature to proposals on management of the state. Technical subjects were also tested to appoint experts on medicine, interpretation, accounting, law etc. These were the primary route for most people to achieve positions in the bureaucracy.