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In addition, technology began to develop at a quicker pace because of the war. Due to necessity during wartime, factories became more efficient and the quality of goods they produced became higher. Even after the war, the United States was in an era of steel and electricity. In fact, the period after the war had many new appliances that saved time, such as laundry machines and refrigerators. Also, they began to use electricity on a large scale. All of this would not have been possible without the war, when all countries scrambled to develop new technology that could give them an upper hand on the battlefield.