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Polish was the nationality of Janusz Korczak, a renowned Polish-Jewish educator, physician, and children's rights advocate. Born in Warsaw in 1878, Korczak dedicated his life to improving the lives of orphaned and disadvantaged children. He established orphanages where children were treated with respect and given opportunities for education and self-governance. Korczak's unwavering commitment to children's well-being earned him international recognition and the title of "Father of Children's Rights."