Answer:
1.The united states tests the atomic bomb 2. The US drops the atomic bomb on Japan. 3. The war ends.
In Plessy v. Ferguson, the Supreme Court ruled that facilities that were "separate but equal" were permissible under the US Constitution.
This allowed the Jim Crow laws to develop wherein African Americans went to different schools, ate at different restaurants or in different sections, and were generally segregated from the population
D. The Supreme Court of Washington is the final appeals court in the state(I believe)
The Supreme Court's additional powers to review decisions of the National Court (when an appeal is not available) and to consider references on constitutional issues, are given by the Constitution itself. Procedure in those cases is governed by Rules made by the Judges of the Supreme Court. (Hope this helps.)
The main way in which the Northwest Ordinance increases sectionalism in the United States was that it offered lots of new territory in which people had to determine where to be free or slave states.