Can you provide a detailed summary of the key events in the life of Albert Einstein, including his major contributions to physics and notable personal milestones? Your response should contain at least 500 words and at least 7 sentences. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *theory of relativity*, *quantum mechanics*, *nuclear energy*, *peace activist*, *Nobel Prize in Physics*.
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