10. World War II
World War II greatly impacted the lives of people throughout America. Although the United States was only involved in the last four years of the war, it would greatly affect many families in the states. Sons and fathers were all sent abroad to fight. For a while, the U.S. was staying out of the war, that was until Pearl Harbor was bombed on December 7, 1941. Men were shipped off to Europe and around 500,000 American men lost their lives. Once the war was over, men returning to the states were faced with a booming economy, as the war had positively impacted the U.S. From that point on, the U.S. dominated the world economy and became a major military power.