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They settled in an area that included Ukraine and Poland between the 400s and 500s.
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Slavs formed Great Moravia, an empire covering much of Central Europe.
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The warrior armies of the Mongols of Central Asia invaded Russia.
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The Plague, also known as the Black Death, killed thousands in the European region. It was at large until around 1351.
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Ivan IV was more commonly known as Ivan the Terrible because of the terrible things that he did during his reign. He reigned until he died in 1584.
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He was the child of Ivan IV and took over the throne because Ivan IV died.
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Godunov was elected because Fyodor had died, and Fyodor had no children at the time.
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Although he was Boris Godunov's son, he was named Fyodor II, and was appointed czar when his father unexpectedly died.
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He took over the empire after he forced Fyodor I to leave by claiming to be the son of Ivan IV.
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He took over the kingdom after Dmitry died.
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He was only 13 years old when he was elected. He reigned until 1645.
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Serfdom is the process of hiring a serf who is an agricultural laborer bound under the feudal system to work on his lord's estate.
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The United States reached an agreement to purchase Alaska from Russia for a price of $7.2 million.
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Although the Great Depression was mostly in the United States, it greatly affected the economy around the world.
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Germany invaded Poland, which was occupied by Russians.
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The Cold War began, which was the strong threat of war between the United States and its allies, and the USSR or Soviet Union. No war actually occurred, however. This ended around 1991.
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Sputnik was the first artificial satellite launched into space.
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When the people became unhappy with the czar's rule, they came out onto the streets and violently protested.
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The Soviet Union falls apart, giving independence to Russia.
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NATO, or the North Atlantic Treaty Organization, is a formal alliance between the territories of North American and Europe.
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They were introduced digitally in 1999, but they weren't physically made until 2002.
