Janusz Korczak was a Polish-Jewish doctor, educator, and author who dedicated his life to the welfare of children. He was the director of an orphanage in the Warsaw Ghetto during World War II, where he refused to abandon his charges even when
From Wikipedia
Janusz Korczak, the pen name of Henryk Goldszmit, was a Polish Jewish pediatrician, educator, children's author and pedagogue known as Pan Doktor or Stary Doktor. He was an early children's rights advocate, in 1919 drafting a children's constitution.