as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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name three important events in world history from the last century.
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1. the end of world war ii in 1945.
2. the fall of the berlin wall in 1989. 
3. the establishment of the united nations in 1945.
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