Analysis of information sources in references of the Wikipedia article "History of Liberia" in English language version.
In Illinois there were severe restrictions on free black people entering the state, and Indiana barred them altogether. Michigan, Iowa, and Wisconsin were no friendlier. Because of this, the black populations of the northwestern states never exceeded 1 percent.
In Illinois there were severe restrictions on free black people entering the state, and Indiana barred them altogether. Michigan, Iowa, and Wisconsin were no friendlier. Because of this, the black populations of the northwestern states never exceeded 1 percent.