<span>The United States was concerned about Stalin’s plans for his country in the postwar world.
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<h3>The Berlin Blockade of 1948 to 1949 marked the beginning of the Cold War, the building of the Berlin Wall in 1961 represented the high point of tensions and the opening of the Wall in 1989 represented the end of Cold War tensions.</h3>
<h2>please mark in brain list </h2>
<span>Transcript of Positive and Negative Effects of the Industrial Revolution.
Working in a factory was not something people wanted to do. Pollution,
unsafe, dirty, long working hours, never any breaks. All of the coal
that was used for power became smoke after use.</span>