Dom Sierot (Polish: "House of Orphans") opened in October 1912 at 92 Krochmalna Street in Warsaw, serving Jewish children who had lost parents or been abandoned. Funded through the Society for Orphans' Aid, it housed approximately one hundred children between ages seven and fourteen under the co-direction of Korczak and Stefania Wilczyńska. Over thirty years of operation — relocated into the Warsaw Ghetto in 1940 and liquidated in August 1942 — the institution developed the three signature structures that embodied Korczak's framework: the children's parliament, the children's court, and the children's newspaper. Each granted the orphans genuine authority over their own community; each embodied, in institutional form, the conviction that children are persons now rather than future persons in preparation. The orphanage functioned simultaneously as a home, a clinical laboratory for Korczak's pediatric observations, and a philosophical demonstration.
The building itself was designed to Korczak's specifications, with features that reflected his educational philosophy — large shared spaces to facilitate community, smaller rooms for private reflection, a kitchen and dining hall sized to involve children in food preparation, and administrative arrangements that made the institution's governance visible to its residents. Adults supervised; adults did not do the work the children could do themselves. The principle of productive struggle ran through the building's physical design as much as through its social architecture.
Korczak kept meticulous records of the children — not aggregate data but detailed observations of individual children's development. This archive, most of which was destroyed during the war, represented one of the earliest systematic attempts to document childhood development in an institutional setting. Fragments survived through smuggled copies and post-war recovery efforts.
The orphanage was relocated into the Warsaw Ghetto in November 1940, moving first to 33 Chłodna Street and then to 16 Sienna Street as the ghetto was compressed. Conditions deteriorated rapidly — food grew scarce, disease spread, adjacent institutions were liquidated — but the parliament, the court, and the newspaper continued to function. Korczak's diary, written during the final months, documents the institution maintaining its democratic structures even as the walls closed around it. On August 5 or 6, 1942, the children and staff were marched to the Umschlagplatz and deported to Treblinka.
The building at 92 Krochmalna still stands, now housing a school. A memorial marks the site at 16 Sienna, the ghetto location. The institution's pedagogical legacy persists through the UNESCO Janusz Korczak Chair and through scholars who have documented its practices — Betty Jean Lifton's The King of Children (1988) remains the standard English-language account.
Dom Sierot was founded by the Society for Orphans' Aid, a philanthropic organization of Warsaw Jewish families, with Korczak as director. Construction of the purpose-built facility at 92 Krochmalna was completed in 1912. Stefania Wilczyńska joined as co-director in 1909 and remained until the end; the deep partnership between Korczak and Wilczyńska was the institution's operational spine.
Institution as laboratory. Dom Sierot functioned simultaneously as home, clinic, and philosophical demonstration, producing the empirical foundation for Korczak's framework.
Three structures. Parliament, court, and newspaper together constituted a functional micro-democracy operated by children.
Stefania Wilczyńska. Korczak's co-director for thirty-three years, whose contribution to the institution has been consistently undercredited in accounts that focus on Korczak alone.
Ghetto continuity. The institution's democratic structures persisted through the ghetto years, demonstrating that Korczak's framework was not a luxury of good conditions but a principle that held under duress.