The archives created by Leiden University and the private archives of Leiden professors are an invaluable source for the history of the university and its functioning. The main sources have been edited (nearly always in Dutch). In addition, several studies have been published, describing the development…

In the course of over four centuries the book collections have been greatly enlarged thanks to the bequests and grants or the purchases from the propriety of scholars or private collectors. Sometimes it concerned collections with thousands of early printed books, such as the purchase of the library…

With its more than 1400 bindings and over a thousand fragments Leiden’s collection of medieval manuscripts (up to ca. 1550) is the largest in the Netherlands.

Open Researcher and Contributor Identifier (ORCID) is an international system for the persistent identification of academic authors.

Leiden University Press presents a new now unabridged, richly illustrated edition of Huizinga's famous study of forms of life and thought of the fourteenth and fifteenth centuries in France and the Low Countries.

Castles, monasteries and bridges, but also city profiles, history prints and water management works. Leiden University Libraries (UBL) manages one of the most important collections of topographical images in the Netherlands. The collection, bequested to UBL by Johannes Tiberius Bodel Nijenhuis (1797-1872)…

Leiden University Libraries (UBL) has made approximately 2300 old printed books and special editions available online through Digital Collections. With this, a small but important part of one of the oldest and most important collections of printed works in the Netherlands is now digitally available…

Leiden University Libraries (UBL) has made more than five hundred medieval handwritten text sources available online via Digital Collections. This makes a third of her collection of Western medieval manuscripts – one of the largest and the most important in the Netherlands – available in high resolution…

More than 2000 objects from the Middle Eastern collection at Leiden University Libraries (UBL) have been made available online through Digital Collections. These collections mostly consist of written works in Arabic, Persian, Turkish, Hebrew, Aramaic, and Syriac, but also contain printed works and the…

An impressive 21 research projects by Leiden researchers have been awarded Veni funding from the Dutch Research Council (NWO).

Overview of databases, reference works and websites for research in International Studies