Answer:
The American Civil War (April 12, 1861 – May 9, 1865, also known by other names) was a civil war in the United States fought between northern and Pacific states ("the Union" or "the North") and southern states that voted to secede and form the Confederate States of America ("the Confederacy" or "the South").[e] The central cause of the war was the status of slavery, especially the expansion of slavery into newly acquired land after the Mexican-American War.
During 1931-1945(world war 2) japan became to build up and later went to war with the united states (August 1941 The Battle of Pearl Harbor)
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The answer is an enlarged Supreme Court. Hope this helps <3
Britain did not become part of the Byzantine Empire.