Jan Karski, underground courier for the Polish government-in-exile, informed the West in the fall of 1942 about Nazi atrocities against Jews taking place in Poland. Washington, DC, United States, 1943.

Jan Karski

Thank you for supporting our work

We would like to thank Crown Family Philanthropies, Abe and Ida Cooper Foundation, the Claims Conference, EVZ, and BMF for supporting the ongoing work to create content and resources for the Holocaust Encyclopedia. View the list of donor acknowledgement.