As a catalog of the California State Archives, Minerva provides access to summary descriptions their resources. The California State Archives is responsible for the management and preservation of state government records. Within the more than 300 million items in its collections are documents from the state's first constitutional convention in 1849, land grant records of the Spanish and Mexican eras, campaign contribution statements, State Supreme Court and Courts of Appeal case files, legislative committee files, original laws, papers of many of the state's leading politicians, and large collections of photographs, maps, drawings, and audio/visual materials.