Korean Peninsula

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Across
  1. 3. land surrounded by water on three sides
  2. 4. Kingdom formed in southeast Korea around 57 B.C.
Down
  1. 1. Strongest of the three Korean kingdoms formed in 37 B.C.
  2. 2. Chinese dynasty that conquered Korea in 108 B.C.
  3. 3. Kingdom founded in 18 B.C. known for its economic strength