What are some racial problems with the probation system

When conducting research for forming a hypothesis, which practice should historians follow?

What was the purpose of winston churchill’s “blood, toil, tears, and sweat” speech? a. to inform parliament about nazi aggression b. to inspire the british people to keep fighting the nazis c. to update parliament on what he had accomplished so far d. to convince parliament to go to war against nazi germany

Many blacks moved from the south to northern cities during world war li looking for employment. after the war, a number of them lost their jobs. why did this happen?