X X Social Studies 5 B (Lynn): Westwa X + connexus. com/content/chrome/online/lessonVie wer. aspx?header=true&idCourse=88766 &id sson 14: Westward Expansion and Civil War Unit Test cial Studies 5 B (Lynn) Unit 1: Westward Expansion and Civil War Assessment 14 20. Identify three events that led to the Civil War. Explain how each was an important cause of the war. I​