How did the geography of Greece limit and invite interaction with other civilizations?

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Explanation:

Some cities, like Athens, were surrounded by hills on all sides except one side by ocean.  This made Athens quite secluded, physically.  However, they overcame that by building boats.  Other cities on plains/valleys, such as Sparta, had easy access to wide areas of land, but did not often interact much.

1. between 1754 and 1763

2. a land bridge between siberia and alaska that was exposed during the most recent ice age when the waters of the bering strait receded.

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lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.