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Your search for ′When the Berlin Wall came down′ returned the following results:
1989
While this experiment was underway, on 9 November 1989 the Berlin Wall came down, marking the end of the Cold War.
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on 9 November 1989 (
A month after the symbol of the Cold War: the Berlin Wall went down on 9 November 1989 (exactly 30 years ago, by the way)
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