Janusz Korczak was a Polish-Jewish educator and children's author who dedicated his life to caring for orphaned and abandoned children in Warsaw. He refused liberation from the Warsaw Ghetto and instead chose to accompany over 200 orphans from his orphanage on their final journey to the Treblinka extermination camp, where he and the children perished. Korczak is considered one of the greatest heroes in the history of child advocacy for his selfless devotion to the welfare of children.