Why is it important to examine the life of free African-Americans in the North before the Civil War? I'LL GIVE BRAINLIEST

En que parte de asia se escribió la biblia

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers.c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers.d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.

The english document that laid the ground work for judges in the us to rule based on precedent is known as the