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Henryk Goldszmit, known by his pen name Janusz Korczak, was a Polish-Jewish educator, physician, and children's rights activist. He dedicated his life to improving the lives of orphans and advocating for their rights. Korczak's most famous works include "King Matt the First" and "When I Am Little Again." He is remembered for his unwavering commitment to children's welfare and his belief in their inherent dignity.