Because they lost the war to the Colonists.
That process is known as "secession", since it is the act of seceding.
I believe it was Russia
80% sure
China became communistic from Russia's communism...
War caused production rates to go up which led to increased economy and promoted womens rights.
Judicial Review is the ability to review new laws to see if they are within the guideline of the Constitution. If the law is not within the guidelines, it is called unconstitutional and is discarded.