Today is the U.N. International Day of Commemoration in memory of the victims of the Holocaust. As an organization first created to help people flee Nazi oppression, UUSC has deep ties to this day. Martha and Waitstill Sharp, two of UUSC’s founders, worked to help hundreds of people, including children, in their struggles to escape what would become the Holocaust. Their work will be memorialized this fall in Two Who Defied the Nazis: The Journey of Martha and Waitstill Sharp, a PBS film produced by Ken Burns. Watch the trailer above.