In 1986, the Ulaanbaatar government created a centralized system for all public libraries in the city, known as the Metropolitan Library System of Ulaanbaatar (MLSU). This system coordinates management, acquisitions, finances and policy among public libraries in the capital, in addition to providing support to school and children's libraries. Other than the Metropolitan Central Library, the MLSU has four branch libraries. They are in the Chingeltei District (established in 1946), in the Han-Uul District (established in 1948), in the Bayanzurkh District (established in 1968) and in the Songino-Hairkhan District (established in 1991). There is also a Children's Central Library, which was established in 1979.