The National Museum of Mongolia was established in the capital, Ulaanbaatar, in 1924. The museum’s collection contains about 56,000 historical and ethnographic artifacts from prehistoric times to modern times. Some of the most important historical items are displayed in its nine halls, which are arranged according to historical periods and themes as follows. History of ancient Mongolia, ancient states, traditional clothing and jewelry, Mongolian Empire, Mongolian traditional culture, Mongolian traditional life, Socialist Mongolia (1921-1990), Democratic Mongolia (1990 - present).