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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construct a timeline to outline the epochs of the earth.
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- 4.5 billion years ago: formation of the earth 
- 3.9 billion years ago: emergence of single-celled organisms
- 570 million years ago: cambrian explosion
- 145 million years ago: dinosaurs dominate
- 2.6 million years ago: rise of homo genus
- 400,000 years ago: emergence of homo sapiens
- 30,000 years ago: development of sophisticated tools
- 10,000 years ago: emergence of civilizations
- present: modern human era
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