Free blacks in the antebellum period--those years from the formation of the Union until the Civil War--were quite outspoken about the injustice of slavery. Their ability to express themselves, however, was determined by whether they lived in the North or the South. Free Southern blacks continued to live under the shadow of slavery, unable to travel or assemble as freely as those in the North.
African Americans also engaged in achieving freedom for others, which was a complex and dangerous undertaking. Enslaved blacks and their white sympathizers planned secret flight strategies and escape routes for runaways to make their way to freedom. Although it was neither subterranean nor a mechanized means of travel, this network of routes and hiding places was known as the "underground railroad."
