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The Central Pacific and Union Pacific Railroad's experience many unspeakable challenges along the ... The Chinese immigrant population had grown on the west coast due to the discovery of gold. ... In the end, 11 tunnels were completed. An entire camp was taken out by an avalanche, including all of its workers. Another challenge they faced was the need to create tunnels through the mountains. Using nitroglycerin, they had to blast through the mountains in a very dangerous manner.
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After World War II, defeated Germany was divided into Soviet, American, British and French zones of occupation. The city of Berlin, though technically part of the Soviet zone, was also split, with the Soviets taking the eastern part of the city.
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