In the 800s, Alfred the Great united the English and overthrew the Danish conquerors. Or are you talking about a cultural revolution? I don't think anyone knows what you are talking about. There was more than one English civil war, though most people think of the 1600s war involving King Charles, Parliament, and Oliver Cromwell as "THE English Civil War". I would Google it if I were you, because the question is so broad that the answers will be too long to explain everything fully.