Ut per litteras apostolicas provides a complete collection of papal letters from the 13th and 14th centuries. The database represents an electronic version of the renowned * Registres et lettres des Papes du XIIIe siècle (32 vols.; Rome, 1883- ) * Registres et lettres des Papes du XIVe siècle (48 vols.; Rome, 1899- ) It is an invaluable source regarding various aspects of medieval history and society.

The journal Vestnik Evropy is among the earliest and most influential literary and political journals of Russia. The founder of the journal was the writer and historian Nikolaj Karamzin. The journal was published in three series: 1802 - 1830, 1866 - 1918 and since 2001. The period 1866 - 1918 is presently not available digitally. From 2001 onwards, the title is available on the internet free of charge.

Voennaia Mysl’ (Military Thought) is regarded as the most authoritative military-theoretical journal in the USSR and post-Soviet Russia. Established in 1918, a year after the October Revolution, as Voennoe Delo, it underwent several name changes and became Voennaia Mysl’ in 1937. Published under the auspices of Ministry of Defense, and directly subordinate to the General Staff, Voennaia Mysl’ throughout can be regarded as avehicle for the articulation of various Soviet and Russian military doctrines. With the beginning of the Cold War access to Voennaia Mysl’ became severely restricted with the covers carrying the classification stamp “For Generals, Admirals, and Officers Only.” The journal remained classified until 1989.

The oldest Soviet and Russian academic history journal, Voprosy istorii ("Issues of History") has offered scholarly perspectives on events in Russia and the world since 1926. Published by the Russian Academy of Sciences, this legendary journal covering Russian and world history was first published under the title Istorik-Marksist (Marxist Historian, 1926-1941), then Istoricheskii zhurnal (History Journal, 1937-1945) and finally under the present title (since 1945). Voprosy istorii is a forum for distinguished historians from Russia and abroad who regularly contribute analyses on a broad scope of issues. Also offered in the journal are portraits, journalism, memoirs, and more, from a historical perspective. Voprosy istorii is also recognized for the publication of unedited and archival materials, including those recently declassified.

This collection contains 35.000 pages of English-speaking national literature from 116 books originally published between 1789 and 1834. Independently from authors' places of birth, their works have been selected for the collection according to their Wales-related content. The collection has been compiled by members of Cardiff University, Wales, from literature holdings of the Fürstliche Bibliothek Corvey. E-books contain digitally enhanced facsimile pages of historical book pages, and even bookmarks to relevant parts of works. Within e-book pages, i.e. within historical texts and layout, fulltext searches can be performed.

The Warsaw Pact Journal Digital Archive includes all 40 issues of the journal "Informatsionnyi sbornik ShOVS Varshavskogo Dogovora" published between 1970 and 1990. This was a secret Soviet-run military-theoretical journal with a thematic focus on coalition strategy and operations. During its existence, the Warsaw Pact Journal played an important role in communicating military doctrine and strategy among Warsaw Pact members. During this period, the Warsaw Pact Journal was the only journal in which officers from all Pact countries actively contributed their analyses and contributions.

Full text database containing material from China's republican period (1911 - 1949) and from the Peoples' Republic of China, from single districts and provinces. This material comprises items which are difficult to reference bibliographically, and which have been compiled since 1960, to provide historical and contemporary information from the various regions. Certain items are even related to the Opium Wars or to the conflicts with the West starting in the 1890s.

Based on the digitization of K. G. Saur's Biographical Archives, WBIS Online provides biographical information on over 6 Million people from the 8th century B.C. to the present as well as from all countries and regions worldwide. The subscription covers all biographical archives, except the German Biographical Archive, DBA.

The World Christian Database (WCD) provides comprehensive statistical information on world religions, Christian denominations, and people groups. Extensive data are available on 9,000 Christian denominations, 13,000 ethnolinguistic peoples, as well as data on 5,000 cities, 3,000 provinces and 234 countries.

Artek's Archive reflects the recreation camp's history between 1944 and 1967, containing government documents on Soviet social and health policies, administrative, medical and financial records, transcripts of meetings, materials on educational and ideological work carried out in the camp statistical reports, food rations and provision standards, letters from Soviet and foreign children, diaries etc.

The World Religion Database (WRD) contains detailed statistics on religious affiliation for every country of the world. It provides source material, including censuses and surveys, as well as best estimates for every religion to offer a definitive picture of international religious demography. It offers best estimates at multiple dates for each of the world’s religions for the period 1900 to 2050.

The bimonthly newspaper Za vozvrashchenie na Rodinu ("Return to the Motherland") was published between 1955-1960 in East Berlin, primarily aimed at Russian emigrants in the West. Against the background of the Cold War, it was established under the watchful eye of the KGB and published by the Soviet Repatriation Committee, serving as an important anti-Western propaganda outlet for the USSR. The main objective was to create a favorable image of the Soviet Union and to criticize émigré organizations in the post-war period. During its publication, the newspaper was not available to the public on a subscription basis, therefore it has become a rare information resource.