the passage of the Fugitive Slave Acts resulted in many free blacks being illegally captured and sold into slavery. One famous case concerned Solomon Northup, a freeborn black musician who was kidnapped in Washington, D.C. in 1841.
Passed on September 18, 1850 by Congress, The Fugitive Slave Act of 1850 was part of the Compromise of 1850. The act required that slaves be returned to their owners, even if they were in a free state. The act also made the federal government responsible for finding, returning, and trying escaped slaves