Officially, the Korean War never technically ended. Although the Korean Armistice Agreement brought an end to the hostilities that killed 2.5 million people on July 27, 1953, that ceasefire never gave way to a peace treaty. At the time, South Korea's president refused to accept the division of Korea!
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The steamboat not only moved people, but also goods. With the high demand in goods and fuel for these boats; along came thousands of jobs in the coal mines and in the factories. The steamboat also led to thousands of new settlement across America's rivers, including the huge boom of Indiana's Ohio River Cities.