Some Korean examination practices converged with the Chinese system. By the end of the Goryeo period, a military exam had been added, the triennial schedule observed, and the exam hierarchy organized into provincial, metropolitan, and palace levels, similar to the Chinese. Other practices, such as the inclusion of exams on Buddhism and the worship of Confucius, were not shared with China. Outside China, the examination system was most widely implemented in Korea, with enrollment rates surpassing even that of China. Any free man (not Nobi) was able to take the examinations. At the start of the Joseon period, 33 candidates were selected from every triennial examination, and the number increased to 50 later on. In comparison, China's selected candidates after each palace examination were no more than 40 to 300 from the Tang to Ming dynasties while encompassing a landmass six times larger than Korea. By the Joseon period, high offices were closed to aristocrats who had not passed the exams. The examination system continued until 1894 when it was abolished by the Gabo Reform.