In Autumn 1940, a group of several dozen people living in the Warsaw Ghetto began to collect and edit an extensive account of the fate of Polish Jews under German occupation.

At that time they weren’t yet aware that increasing persecution will develop into mass extermination of their nation, and that the work which they decided to pursue will become the most important testimony of the Holocaust. They held their meetings on Saturdays, hence the name Oneg Shabbat – "the joy of Sabbath” in Hebrew.

The Jewish Historical Institute and the Association of the Jewish Historical Institute of Poland in 2017 launched the ONEG SZABAT PROGRAM in order to continue dr. Ringelblum and his associates’ calling – to save the memory of people who perished in the Holocaust.

The Underground Archive of the Warsaw Ghetto is the most important Jewish real-time evidence of the Holocaust.

For 70 years the Institute and the Association have been preserving original documents and materials of the Archive. They have been safeguarded and conserved inside the building where Emanuel Ringelblum worked and where Oneg Shabbat group held their meetings.

In 1999 UNESCO included the Archive into the Memory of the World Register.

The Oneg Szabat Program was established to fulfill the testament of its creators. The mission of the Program is to make the knowledge about dr. Ringelblum, the Oneg Shabbat group and the Archive accessible and disseminated to people all over the world.