Problem: Which Portuguese explorer discovered an ocean route from Portugal to the East - thought to be impossible at the time - in 1497??
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A: vasco da gama

Problem: Crimea, over which multiple wars have been fought, was annexed from Ukraine in 2014 by which country?
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A: russia

Problem: In 1980 Lech Walesa co-founded what trade union in Poland?
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A: solidarity

Problem: Name the great old rival company of the Harley-Davidson motorbike corporation, whose models included the Chief and Scout?
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A:
indian