Answer: Three countries (Great Britain, Ireland, and Germany) accounted for 93 percent of all arriving immigrants in 1849.
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The Underground Railroad was a network of people, African American as well as white, offering shelter and aid to escaped enslaved people from the South. It developed as a convergence of several different clandestine efforts.
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The Shang Dynasty was sometimes referred as Young Dynasty
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Julius and Ethel Rosenberg were Jewish American citizens who were convicted, with others, of conspiracy for espionage on behalf of the Soviet Union in the late 1940s, when it was an ally of the United States during World War II. They were tried, convicted, and executed by the federal government of the United States.