The California State Archives' collections document the broad scope of California government and its impact on the people of the state.

Established in 1850, the California State Library is the central reference and research library for state government and the Legislature

Historical research center for the Sacramento region.

Provides free public access to detailed descriptions of primary resource collections maintained by more than 200 contributing institutions.

The purpose of the Sacramento Historical Society is to preserve the heritage of the Sacramento region, to act as a resource for inquiries regarding local area history, and to promote a greater awareness of Sacramento's regional and national history.

Offers exhibits on California and Sacramento history.

Sacramento History Online is a joint project of four Sacramento County institutions to digitize and catalog over 2,000 items from their collections.

Books, periodicals, maps, ephemera, postcards and photographs documenting more than 150 years of Sacramento County’s social, cultural, religious and political history.

The Library of Congress has digitized and organized many primary sources by subject.

A website about teaching history that was put together by George Mason University and contains a collection of primary documents centered around U.S. history.

Created by the University of Michigan, Making of America is a digital library of primary sources in American social history from the antebellum period through reconstruction.

A Library of Congress compilation of state and regional digital projects and collaborations containing primary documents.

The title says it all. This is a selected list of websites containing primary source materials.

Includes over 7 million records describing archival materials, bringing together information about historical documents, personal papers, family histories, and more.

Digital collections of primary source materials from throughout the Spanish-speaking world.

Repository containing a previously unavailable subset of Princeton’s Latin American Ephemera Collection as well as newly acquired materials being digitized and added on an ongoing basis.

Collection of electronic texts and links to texts originally written in or about the Americas from 1492 to approximately 1820.

Europeana provides cultural heritage enthusiasts, professionals, teachers, and researchers with digital access to European cultural heritage material.

HathiTrust is a not-for-profit collaborative of academic and research libraries preserving 17+ million digitized items.

Information and images of all manuscripts, paintings, textiles and artefacts from Dunhuang and archaeological sites of the Eastern Silk Road.

Presents historical sources on the history of human societies in the continent of Africa.

Presents historical sources on the history of human societies in East Asia.

Presents historical sources on the history of human societies in India.

Presents historical sources on the history of Islam.

Presents historical sources on the history Judaism.

Collections of Greek, Roman, Arabic, Germanic, Renaissance, American, and Italian texts and matierals.

Primary sources from China, Japan, Vietnam, and Korea.