Fugitive Slave Act of 1850
Act of the United States Congress
The Fugitive Slave Act or Fugitive Slave Law was a statute passed by the 31st United States Congress on September 18, 1850, as part of the Compromise of 1850 between Southern interests in slavery and Northern Free-Soilers.
The Act was one of the most controversial elements of the 1850 compromise and heightened Northern fears of a slave power conspiracy. It required that all escaped slaves, upon capture, be returned to the slave-owner and that officials and citizens of free states had to cooperate. The Act contributed to the growing polarization of the country over the issue of slavery. It was one of the factors that led to the founding of the Republican Party and the start of the American Civil War.
Background
By 1843, several hundred enslaved people per year escaped to the North successfully, making slavery an unstable institution in the border states.
The earlier Fugitive Slave Act of 1793 was a federal law that was written with the intent to enforce Article 4, Section 2, Clause 3 of the United States Constitution, which required the return of escaped slaves. It sought to force the authorities in free states to return fugitive slaves to their enslavers.
Many free states wanted to disregard the Fugitive Slave Act. Some jurisdictions passed personal liberty laws, mandating a jury trial before alleged fugitive slaves could be moved, while others forbade the use of local jails or the assistance of state officials in arresting or returning fugitive slaves.
“Fugitive Slave Act of 1850” enters the record as act of the United States Congress. Crown Archives preserves that source wording while asking what Fugitive, Slave and United can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 5, 2026. The linked authority identifier is Q535519. VIAF identifies the subject as 175883565. The Library of Congress control number is n94049341. None of the 3 selected statements returned an explicit reference. The first chronological checks are 1850, 1843 and 1793.
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This entry incorporates text from “Fugitive Slave Act of 1850” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.