Communist rule in Romania ended in 1989 when a bloody revolt removed Nicolae Ceausescu (shown here delivering a speech in Bucharest in 1967) from power. Keystone/Getty Images hide caption

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Dissident writer and opposition leader Vaclav Havel addresses the crowd at a rally in Prague celebrating the 40th anniversary of the Universal Declarations of the Human Rights, Dec. 10, 1988. Havel was elected the first president of Czechoslovakia after the fall of the communist regime in 1989. Joel Robine/AFP/Getty Images hide caption

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A Polish woman flashes the victory sign near the destroyed remains of a replica of the Berlin Wall in central Warsaw as a part of celebrations marking the 20th anniversary of the fall of the Berlin Wall, on Nov. 9, 2009. Wojtek Radwanski/AFP/Getty Images hide caption

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Fireworks explode over Brandenburg Gate in Berlin on Monday as part of the celebrations marking the 20th anniversary of the fall of the Berlin Wall. Wolfgang Rattay/AFP/Getty Images hide caption

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Checkpoint Charlie shown in June 1968 (left) and October 2009 (right). During the Cold War, Checkpoint Charlie was the main border crossing between East and West Berlin; today, the historic site is a popular shopping district and tourist attraction. John MacDougall/AFP/Getty Images hide caption

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