Several cultural preservation societies and organizations have been established over the course of the 20th century. The largest of those institutions is the Bernice Pauahi Bishop Museum, established in 1889 and designated as the Hawaiʻi State Museum of Natural and Cultural History. The Bishop Museum houses the largest collection of native Hawaiian artifacts, documents, and other information available for educational use. Most objects are held for preservation alone. The museum has links with major colleges and universities throughout the world to facilitate research.