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The Greeks made important contributions to philosophy, mathematics, astronomy, and medicine. Literature and theatre was an important aspect of Greek culture and influenced modern drama. The Greeks were known for their sophisticated sculpture and architecture.  

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Explanation:

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

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