The database contains full texts of 426 British popular science, art science and literary periodicals from between the 17th and the 20th century.

The Digital National Security Archive of the U.S.A. is a comprehensive collection of essential primary documents concerning the U.S. foreign and military policy since 1945. The database, consisting of 33 partial collections, contains more than 80,000 of the most important declassified documents. Thereby, it is about political scripts such as directives of the President, notes, and diplomatic dispatches. It is also about meeting notes, autonomous reports, briefings, communications from the White House, e-mails, confidential letters, and other secret documents. For each partial collection there is included additionally an explanatory reference part containing an introduction, a chronology, a glossary, and a bibliography. This reference part helps one to bring the material also into contextual coherencies. -- Das Digital National Security Archive der U.S.A. ist eine umfangreiche Sammlung wesentlicher Primärdokumente zur US-Außen- und Militärpolitik seit 1945. Die aus 33 Teilsammlungen bestehende Datenbank enthält über 80.000 der wichtigsten freigegebenen Dokumente. Es handelt sich dabei sowohl um politische Schriften wie Direktiven des Präsidenten, Memos, diplomatische Depeschen als auch um Sitzungsnotizen, unabhängige Berichte, Briefings, Mitteilungen aus dem Weißen Haus, Emails, vertrauliche Briefe und andere geheime Dokumente. Zu jeder Teilsammlung ist zusätzlich ein erklärender Referenzteil mit Einführung, Chronologie, Glossar und Bibliographie enthalten, der hilft, das Material auch in kontextuelle Zusammenhänge bringen.

ProQuest Dissertations and Theses Global is the world's most comprehensive collection of dissertations and theses, covering materials back to the first U.S. dissertation, accepted in 1861, as well as to European dissertations from the 17th century. The database is the official dissertations repository for the Library of Congress, with 5.5 million bibliographic citations, 3 million full texts, 4,100 contributing institutions worldwide and 250,000 works added annually. Full-text coverage spans from 1743 to the present, with citation coverage dating back to 1637.

ProQuest Historical Newspapers offers full-text and full-image articles for significant newspapers dating back to the 18th Century.

The database contains approx. 11 million pages - i.e. every British parliament document published officially over a period of three centuries - and offers an abundant range of material about the political and public topics of the time. Along with parliament documents the database comprises reports and correspondence that mirrors, for example, also the relationship of the British Empire with its colonies and the rest of the world. In addition to parliament documents from the House of Commons and the House of Lords the database contains debate contributions, congress reports, publications of the parliament and historical documents.

Periodicals Archive Online is a major archive that makes the backfiles of scholarly periodicals in the arts, humanities and social sciences available electronically, providing access to the searchable full text of hundreds of titles. The database spans more than two centuries of content, 37 key subject areas, and multiple languages.

ProQuest, the company, serves the information needs of millions of researchers in libraries and institutions around the world. ProQuest, the product, is a search application providing access to a broad selection of bibliographic and fulltext databases, to the world’s largest collection of dissertations and theses as well as to three centuries of global, national, regional and specialty newspapers.

The Education Magazine Archive provides access to the archives of leading magazines and trade publications in the field of education, dating from the early 20th century through to the 21st. It covers multiple aspects of the history of education of this period, with magazines devoted to a range of educational levels, topics, and audiences. The collection comprises 26 publications and approximately 850,000 full color page images, each article individually indexed with fully searchable text. The titles were originally aimed at teachers, policy makers/administrators and other education professionals, but have now become valuable primary sources for scholars. The material enables researchers to explore multiple perspectives on the key events of the age and opens up new opportunities for research in the history of education, as well as on related subjects such as social history, childhood studies, psychology, and politics.

The Acta Sanctorum are one of the most important sources for the exploration of society and culture in the Early Christian and medieval Europe. Our knowledge of this epoch is almost exclusively based on the Hagiographic literature, in particular on this monumental collection of texts published over a period of 300 years by the Societé des Bollandistes. The Acta Sanctorum Database contains the complete text of the 68 volumes printed. -- Die Acta Sanctorum sind eine der wichtigsten Quellen für die Erforschung von Gesellschaft und Kultur im frühchristlichen und mittelalterlichen Europa. Unser Wissen über diese Epoche stützt sich nahezu ausschließlich auf die hagiographische Literatur, insbesondere auf diese monumentale Textsammlung, die über einen Zeitraum von 300 Jahren von der Société des Bollandistes veröffentlicht wurde. Die Acta Sanctorum Datenbank enthält den gesamten Text der 68 gedruckten Bände.

The edition is based on the series "Heinemann's African Writers Series", a comprehensive collection of modern African 20th century literature. The series comprises more than 300 titles and contains poetry, drama, and non-fictional literature by authors like Ama Ata Aidoo, Mongo Beti, Steve Biko, Dennis Brutus, Cyprian Ekwensi, Buchi Emecheta, Bessie Head, Luis Bernardo Honwana, Chenjerai Hove, Nelson Mandela, Jack Mapanje, and Veronique Tadjo.

The Patrologia Latina Database is an electronic version of the first edition of Jacques-Paul Migne's Patrologia Latina, published between 1844 and 1855, and the four volumes of indexes published between 1862 and 1865. Patrologia Latina comprises the works of the Church Fathers from Tertullian in 200 AD to the death of Pope Innocent III in 1216. The complete Patrologia Latina is included with all prefatory material, original texts, critical apparatus and indexes. Migne's column numbers, essential references for scholars, are included.