The launch of the Delet (Hebrew: ‘door’) educational portal

Written by: Jewish Historical Institute
The portal publishes materials from the entire collection dedicated to the Oneg Shabbat group as well as works of art. The project is an initiative of the Association of the Jewish Historical Institute of Poland in partnership with the Emanuel Ringelblum Jewish Historical Institute.


The Delet (Hebrew: ‘door’) portal is an innovative, technologically advanced tool for developing educational materials, virtual lessons and exhibitions on the basis of resources collected in our digital repository – the Central Jewish Library.



Delet is an element of the multiannual Oneg Szabat program, which aims at popularizing the legacy of the Oneg Shabbat group – the Underground Archive of the Warsaw Ghetto. It provides a unique opportunity not only to study the original materials but also to build academic and educational presentations.

The portal will also make available scans of paintings, drawings, sketches, woodblock prints, reproductions and spatial forms – such as artworks from the collection of Gela Seksztajn, whose work will be the subject of a virtual guided tour on 24 October.

Delet is addressed at school and university students, teachers, academics, enthusiasts, and everyone interested in the history and culture of Polish Jews. A logged-in user will have access to highest quality digital copies which allow to study even smallest details of the scan. One can modify the parametres of an image (colour saturation, contrast), maximize or specify particular sections, add notes and bokmarks in order to mark interesting fragments. Copies of documents are being provided with metadata by the Inventory Department of the JHI.

Presentations can be prepared for private use or shared with others. Portal also offers free lessons and guided tours presenting key information about Jewish history and culture, as well as interesting, lesser known details about our resources.

In mid-November, we will publish materials related to the new permanent exhibitions, „What we were unable to shout out to the world”, dedicated to the Oneg Shabbat group.



For 2018, we plan to develop a mobile application complementary to the Delet portal.

Go to the Delet portal.


The publication is a part of the Oneg Szabat program, realised by the Association of the Jewish Historical Institute of Poland. The aim of the program is to make available and to popularize the Underground Archive of the Warsaw Ghetto (the Ringelblum Archive) and to commemorate members of the Oneg Shabbat group.


The Oneg Shabbat programme has been initiates on the 70th anniversary of the JHI. It is being realised by the Emanuel Ringelblum Jewish Historical Institute and the Association of the Jewish Historical Institute in Poland within a public-private partnership.





Jewish Historical Institute